Cita APA (7th ed.)

Sperling, A. P. (1982). Psychology made simple. Heinemann Proffessional Publishing.

Cita Chicago (17th ed.)

Sperling, Abraham P. Psychology Made Simple. Oxford: Heinemann Proffessional Publishing, 1982.

Cita MLA (9th ed.)

Sperling, Abraham P. Psychology Made Simple. Heinemann Proffessional Publishing, 1982.