APA (7th ed.) Zitazioa
Costello, S. J. (1994). Effective performance management. Business One Irwin/Mirror Press.
Chicago Style (17th ed.) Zitazioa
Costello, Sheila J. Effective Performance Management. Burr Ridge, Ill: Business One Irwin/Mirror Press, 1994.
MLA (9th ed.) Zitazioa
Costello, Sheila J. Effective Performance Management. Business One Irwin/Mirror Press, 1994.
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