Gaya APA

Mager, R, F., Beach, J, ,, K, M. (). Developing Vocational Instruction . Belmont, California: Lear Siegler, Inc..

Gaya MLA

Mager, Robert, F.., Beach, Jr., ,, Kenneth, M.. "Developing Vocational Instruction". Belmont, California: Lear Siegler, Inc., . Text.