Gaya APA

Atkinson, J, W., Birch, D. (1978). Introduction to Motivation 2'nd Ed. (2). New York: D. Van Nostrand Company.

Gaya MLA

Atkinson, John, W.., Birch, David. "Introduction to Motivation 2'nd Ed.". 2 New York: D. Van Nostrand Company, 1978. Text.