Costello, S. J. (1994). Effective performance management. Business One Irwin/Mirror Press.
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Chicago-čujuhus (17. p.)
Costello, Sheila J. Effective Performance Management. Burr Ridge, Ill: Business One Irwin/Mirror Press, 1994.
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MLA-čujuhus (9. p.)
Costello, Sheila J. Effective Performance Management. Business One Irwin/Mirror Press, 1994.
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