Gaya APA

Bower, G, H., Hilgard, E, R. (1981). Theories of Learning (Ed. 5). London : PRENTCE-HALL.

Gaya MLA

Bower, Gordon, H.., Hilgard, Ernest, R.. "Theories of Learning". Ed. 5 London : PRENTCE-HALL, 1981. Buku.