APA aipamena

Solomon, R. C., & Robert C. Solomon. Existentialism. New York: Modern Library.

Chicago Style aipamena

Solomon, Robert C., và Robert C. Solomon. Existentialism. New York: Modern Library.

MLA aipamena

Solomon, Robert C., và Robert C. Solomon. Existentialism. New York: Modern Library.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.