APA (7th ed.) Citation

Hildebrand, D. v. (1960). What is philosophy? Bruce.

Chicago Style (17th ed.) Citation

Hildebrand, Dietrich von. What Is Philosophy? Milwaukee: Bruce, 1960.

MLA (9th ed.) Citation

Hildebrand, Dietrich von. What Is Philosophy? Bruce, 1960.

Warning: These citations may not always be 100% accurate.