Fryer, D. H., & Feinberg, M. R. Z. (1956). Developing people in industry: Principles and methods of training. Harper & Brothers.
استشهاد بنمط شيكاغوFryer, Douglas H., و Mortimer R. Zalkind Feinberg. Developing People in Industry: Principles and Methods of Training. New York: Harper & Brothers, 1956.
MLA استشهادFryer, Douglas H., و Mortimer R. Zalkind Feinberg. Developing People in Industry: Principles and Methods of Training. Harper & Brothers, 1956.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.