Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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