Spencer, H., & Cazelles, É. (1888). Les premiers principes (5e éd.). Félix Alcan.
Chicago Style (17th ed.) CitationSpencer, Herbert, and Émile Cazelles. Les Premiers Principes. 5e éd. Paris: Félix Alcan, 1888.
MLA (9th ed.) CitationSpencer, Herbert, and Émile Cazelles. Les Premiers Principes. 5e éd. Félix Alcan, 1888.
Warning: These citations may not always be 100% accurate.