Fryer, D. H., & Feinberg, M. R. Z. (1956). Developing people in industry: Principles and methods of training. Harper & Brothers.
Dyfyniad Arddull ChicagoFryer, Douglas H., and Mortimer R. Zalkind Feinberg. Developing People in Industry: Principles and Methods of Training. New York: Harper & Brothers, 1956.
Dyfyniad MLAFryer, Douglas H., and Mortimer R. Zalkind Feinberg. Developing People in Industry: Principles and Methods of Training. Harper & Brothers, 1956.
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