Παραπομπή APA
Roberts, T. J., & Institute of Personnel Management. (1974). Developing effective managers. London: Institute of Personnel Management.
Παραπομπή Chicago StyleRoberts, Tom J., and Institute of Personnel Management. Developing Effective Managers. London: Institute of Personnel Management, 1974.
Παραπομπή MLARoberts, Tom J., and Institute of Personnel Management. Developing Effective Managers. London: Institute of Personnel Management, 1974.
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