How to Alphabetize a Reference List

The letter-by-letter rule and why order is graded

Reference lists sort letter by letter on the first significant element: the author's surname, compared character by character - Chen before Chandler, despite what instinct says about word length - then the initials, then the title when the author slot holds one. Spaces and punctuation in surnames are ignored under the standard convention, so De la Cruz sorts on the D with the letters that follow. The rule is identical in APA 7 and MLA 9 at this level, which is one of the few places the styles fully agree.

The order earns its strictness by function: it is the paper's lookup index, and every in-text citation resolves through it. Graders read the list first because a sorted, complete list predicts a careful paper, and the inverse prediction is just as strong - one misplaced entry suggests the in-text citations were not checked against the list either. The how-many-citations-per-paragraph and same-author pages cover the citation-side habits; this page covers the list they all resolve through, and the two are graded as one system.

The numbers at a glance

Alphabetization edge cases and the rule for each — the range, and where each row actually shows up in coursework. Skim it first; the sections below explain why the range exists and which row applies to you.

Same-author entries and the year order

One author with several works sorts by year in APA 7: 2019 before 2021, n.d. entries first of all, and same-year works take the letter suffixes - 2021a, 2021b - assigned by the alphabetical order of their titles. The letters are assigned once, in the list, and then used everywhere, which is why the suffixes page sends you here first. When the author appears alone on some works and with coauthors on others, APA 7 puts the solo works first as a block, then the coauthored works alphabetized by the second author's surname.

MLA 9 handles the same author differently: multiple works by one author sort alphabetically by title, and the author's name is replaced by three hyphens (---) in every entry after the first. That repeated-author rule is MLA's most-missed list mechanic, partly because some instructors discourage it and want the name repeated; the handout decides, and consistency decides the rest. What never changes is that the same-author block must be internally ordered by some stated principle - year or title - because a jumbled block is visible from the end of the room.

No-author, numeral and organization entries

Title-first entries sort by the first significant word of the title, ignoring A, An and The, so The Green Economy files under G. This is where manual checking earns its keep, because automatic sorts file the article unless the entry was built with the article dropped, and the same ignoring rule applies inside government and corporate names that begin with articles. Numerals are the second trap: APA 7's guidance treats numerals in titles by their spelled-out form for ordering, so a work titled 2024 Guidelines files under T, while some tools sort the digit as a digit and land it before the A's.

Organizations sort by their full official names, letter by letter, with the list preferring the complete name over an acronym: World Health Organization under W, not WHO. Acronym-first organization names - IBM, NATO - sort as printed. The organization-as-author cases connect to the government-website and no-author pages, which decide whose name goes in the slot in the first place; this page only assumes the decision was made. Corporate hierarchies (a bureau inside a department) alphabetize as printed in the entry, which is one more reason the authorship decision belongs upstream.

Tool workflows and what to verify by hand

The efficient workflow sorts once and verifies the edges. Word and Google Docs sort selected paragraphs alphabetically in one command; reference managers and the site's reference-alphabetizer tool produce the whole list already ordered; the citation generator's export is usually sorted too. The hand checks that follow target exactly the cases tools fumble: same-author blocks (tools sort them as separate authors), title-first entries with articles left in, numerals, and accented surnames, where the convention treats accented characters as their unaccented base letters.

Then run the list-level integrity checks that make the sorting matter. Every in-text citation must resolve to exactly one entry, and every entry must be cited at least once, in both APA 7 and MLA 9 - a sorted list with orphans is still a broken list. Confirm the list's heading matches the style (References, not Works Cited, in APA) and the hanging indent survived the sort, because reordering paragraphs by hand is how indents get flattened. The works-cited-versus-reference-list distinction lives in the glossary; the sort lives here.

The mistakes that survive every spellcheck

Sorting by first name is the classic, and it happens when entries were typed by hand from memory: Jane Chen filed under J. Next comes the double-list problem, where drafts accumulated two reference sections and the final submission contains both, subtly out of order. Then the article error, where a title-first entry filed under The. Each is invisible to spellcheck and obvious to a grader who reads lists daily, and each is a thirty-second fix that should happen before submission, not after the grade posts.

The deeper mistake is treating the list as decoration rather than index. The order exists so a reader can find every source in seconds, and the grade follows the function: sorted lists get spot-checked leniently, disordered lists get read carefully. Build the list once with a tool, fix the edge cases by hand using the rules above, and re-run the citation-resolution check after any late editing, because late edits are where orphans and mismatches breed. A list that costs ten disciplined minutes is the cheapest insurance in the paper's final hour.

The format check graders run before reading

Graders check mechanics first and content second — a two-minute scan that decides the paper's first impression. The list: correct font and size, double spacing throughout (no stray single-spaced paragraphs), one-inch margins, page numbers in the right corner, the required title-page fields, heading levels used consistently, and references formatted with hanging indents. Each item is trivial; missing two costs measurable points in most rubrics.

Do this scan on the exported PDF, not the working document — export quirks (shifted margins, dropped page numbers, orphaned headings) only appear there. The style switcher below shows the same source formatted in APA 7, MLA 9 and Chicago side by side, which is the fastest way to catch the format you've been half-remembering from the wrong course.