Performance Research Associates, Zemke, R., & Anderson, K. (2003). Performance Research Associates' Delivering knock your socks off service (3rd ed. revisions.). American Management Association.
Citace podle Chicago (17th ed.)Performance Research Associates, Ron Zemke, a Kristin Anderson. Performance Research Associates' Delivering Knock Your Socks off Service. 3rd ed. revisions. New York: American Management Association, 2003.
Citace podle MLA (9th ed.)Performance Research Associates, et al. Performance Research Associates' Delivering Knock Your Socks off Service. 3rd ed. revisions. American Management Association, 2003.
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