Cita APA (7th ed.)

Kaplan, A. (1961). The new world of Philosophy. Vintage Books.

Cita Chicago (17th ed.)

Kaplan, Abraham. The New World of Philosophy. New York, Estados Unidos: Vintage Books, 1961.

Cita MLA (9th ed.)

Kaplan, Abraham. The New World of Philosophy. Vintage Books, 1961.