For moreiInformation on MLA works cited pages, including in-depth instructions for citing various sources, view MLA Works Cited Page .
2. When two or more books by the same author are used as reference material, or there are sources by two or more authors with the same last name, include the short title or an abbreviated form of the title:
Citation Machine™ uses the 7th ed. of MLA, 6th ed. of APA, and 16th ed. of Chicago (8th ed. Turabian).
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