Gaya APA

Mager, R, F., M., B, J, K. (1967). Developing Vocational Instruction . Belmont, California, USA: Fearon Publishers.

Gaya MLA

Mager, Robert, F.., M., Beach, Jr.,, Kenneth. "Developing Vocational Instruction". Belmont, California, USA: Fearon Publishers, 1967. Academic.