Παραπομπή APA

Fryer, D. H., & Feinberg, M. R. Z. (1956). Developing people in industry: Principles and methods of training. Harper & Brothers.

Παραπομπή Chicago Style

Fryer, Douglas H., και Mortimer R. Zalkind Feinberg. Developing People in Industry: Principles and Methods of Training. New York: Harper & Brothers, 1956.

Παραπομπή MLA

Fryer, Douglas H., και Mortimer R. Zalkind Feinberg. Developing People in Industry: Principles and Methods of Training. Harper & Brothers, 1956.