Homer & Butler, S. (1952). The Iliad of Homer and The Odyssey. Encyclopaedia Britannica.
Chicago Style (17th ed.) CitationHomer and Samuel Butler. The Iliad of Homer and The Odyssey. Chicago [etc.]: Encyclopaedia Britannica, 1952.
MLA (9th ed.) CitationHomer and Samuel Butler. The Iliad of Homer and The Odyssey. Encyclopaedia Britannica, 1952.
Warning: These citations may not always be 100% accurate.