Cita APA (7a ed.)

Stumpf, S. E. (1979). Elements of philosophy: An introduction. McGraw-Hill.

Cita Chicago Style (17a ed.)

Stumpf, Samuel Enoch. Elements of Philosophy: An Introduction. New York: McGraw-Hill, 1979.

Cita MLA (8a ed.)

Stumpf, Samuel Enoch. Elements of Philosophy: An Introduction. McGraw-Hill, 1979.