Cita APA

Paulsen, F., & Paulsen, F. (1928). Introduction to philosophy (2. American from the 3. German edition.). New York, New York: H. Holt.

Citación estilo Chicago

Paulsen, Friedrich, y Friedrich Paulsen. Introduction to Philosophy. 2. American from the 3. German edition. New York, New York: H. Holt, 1928.

Cita MLA

Paulsen, Friedrich, y Friedrich Paulsen. Introduction to Philosophy. 2. American from the 3. German edition. New York, New York: H. Holt, 1928.