Gaya APA

Kingsley, H, L. (1957). The nature and conditions of learning (Ed. 2 Cet. 3). Englewood: Prentice Hall.

Gaya MLA

Kingsley, Haward, L.. "The nature and conditions of learning". Ed. 2 Cet. 3 Englewood: Prentice Hall, 1957. Text.