Gaya APA

Kagan, J., Laug, C. (1978). Psychologi and Education and Introduction (-). New York: Harkaurt Brance Javanovi Inc..

Gaya MLA

Kagan, Jirome., Laug, Cyuthia. "Psychologi and Education and Introduction". - New York: Harkaurt Brance Javanovi Inc., 1978. Text.