Cita APA (7th ed.)

COSTELLO, S. J. (1994). Effective performance management. Business One IRWIN.

Cita Chicago (17th ed.)

COSTELLO, Sheila J. Effective Performance Management. Illinois: Business One IRWIN, 1994.

Cita MLA (9th ed.)

COSTELLO, Sheila J. Effective Performance Management. Business One IRWIN, 1994.