Cita APA (7th ed.)
Stumpf, S. E. (1979). Elements of philosophy: An introduction. McGraw-Hill.
Cita Chicago (17th ed.)
Stumpf, Samuel Enoch. Elements of Philosophy: An Introduction. New York: McGraw-Hill, 1979.
Cita MLA (9th ed.)
Stumpf, Samuel Enoch. Elements of Philosophy: An Introduction. McGraw-Hill, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.