APA aipamena

Heinemann, F. H. (1958). Existentialism and the modern predicament. Harper & Row.

Chicago Style aipamena

Heinemann, Frederick Henry. Existentialism and the Modern Predicament. New York: Harper & Row, 1958.

MLA aipamena

Heinemann, Frederick Henry. Existentialism and the Modern Predicament. Harper & Row, 1958.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.