APA (7th ed.) Citation

Parsons, S. A. (1972). How to find out about economics. Pergamon Press.

Chicago Style (17th ed.) Citation

Parsons, Stanley A. How to Find Out About Economics. Oxford [u.a.]: Pergamon Press, 1972.

MLA (9th ed.) Citation

Parsons, Stanley A. How to Find Out About Economics. Pergamon Press, 1972.