For APA, do the following:
- Reference list entries should be alphabetized by the last name of the first author of each work.
- If you have more than one article by the same author, single-author references or multiple-author references with the exact same authors in the exact same order are listed in order by the year of publication, starting with the earliest (http://owl.english.purdue.edu/owl/resource/560/05/)
For MLA, do the following:
- Entries are listed alphabetically by the author's last name (or, for entire edited collections, editor names).
- If you have cited more than one work by a particular author, order the entries alphabetically by title, and use three hyphens in place of the author's name for every entry after the first
(https://owl.english.purdue.edu/owl/resource/747/05/)
