APA-referens

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

Chicago-stil citat

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

MLA-referens

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