Gaya APA

Mager, R, F., M,Jr, I, B, K. (1967). Developing Vocational Instruction . California: California: David S. Lake Publisher; 1967.

Gaya MLA

Mager, Robert, F., M,Jr, I., Beach,, Kenneth. "Developing Vocational Instruction". California: California: David S. Lake Publisher; 1967, 1967. Text.