APA (7th ed.) Citation

Borchardt, D. H. (1968). How to find out in philosophy and psychology. Pergamon Press.

Chicago Style (17th ed.) Citation

Borchardt, D. H. How to Find Out in Philosophy and Psychology. Oxford: Pergamon Press, 1968.

MLA (9th ed.) Citation

Borchardt, D. H. How to Find Out in Philosophy and Psychology. Pergamon Press, 1968.

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