APA aipamena

Commins, W. D., & Fagin, B. (1954). Principles of educational psychology (2nd ed.). Ronald Press.

Chicago Style aipamena

Commins, William Dollard, and Barry Fagin. Principles of Educational Psychology. 2nd ed. N.Y.: Ronald Press, 1954.

MLA aipamena

Commins, William Dollard, and Barry Fagin. Principles of Educational Psychology. 2nd ed. Ronald Press, 1954.