Cita APA (7th ed.)
Sperling, A. P. (1957). Psychology made simple: A comprehensive course for ... Doubleday & Co..
Cita Chicago (17th ed.)
Sperling, Abraham P. Psychology Made Simple: A Comprehensive Course for ... Garden City: Doubleday & Co., 1957.
Cita MLA (9th ed.)
Sperling, Abraham P. Psychology Made Simple: A Comprehensive Course for ... Doubleday & Co., 1957.
Atenció: Aquestes cites poden no estar 100% correctes.