APA (7. basım) Alıntı

Olafson, F. A. (1967). Principles and persons: An ethical interpretation of existentialism. Johns Hopkins Press.

Chicago Style (17. basım) Atıf

Olafson, Frederick A. Principles and Persons: An Ethical Interpretation of Existentialism. Baltimore: Johns Hopkins Press, 1967.

MLA (9th ed.) Atıf

Olafson, Frederick A. Principles and Persons: An Ethical Interpretation of Existentialism. Johns Hopkins Press, 1967.