APA (7th ed.) Zitazioa

Solomon, R. C. (1977). Introducing philosophy: Problems and perspectives. Harcourt Brace Jovanovich.

Chicago Style (17th ed.) Zitazioa

Solomon, Robert C. Introducing Philosophy: Problems and Perspectives. New York: Harcourt Brace Jovanovich, 1977.

MLA (9th ed.) Zitazioa

Solomon, Robert C. Introducing Philosophy: Problems and Perspectives. Harcourt Brace Jovanovich, 1977.