Pfeiffer, J. W. (1989). The 1989 annual: Developing human resources (18th annual.). University Associates.
Citace podle Chicago (17th ed.)Pfeiffer, J. William. The 1989 Annual: Developing Human Resources. 18th annual. San Diego, Calif.: University Associates, 1989.
Citace podle MLA (8th ed.)Pfeiffer, J. William. The 1989 Annual: Developing Human Resources. 18th annual. University Associates, 1989.
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