J. Kazmier Leonard. (1964). Principles of Management - a Programmed instrctional Approach (Tái bản lần thứ 3.). American: MC Graw Hill.
Παραπομπή Chicago StyleJ. Kazmier Leonard. Principles of Management - a Programmed Instrctional Approach. Tái bản lần thứ 3. American: MC Graw Hill, 1964.
Παραπομπή MLAJ. Kazmier Leonard. Principles of Management - a Programmed Instrctional Approach. Tái bản lần thứ 3. American: MC Graw Hill, 1964.
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