APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

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