GILLEN TERRY. (2009). PERFORMANCE MANAGEMENT & APPRAISAL (1st.). CHARTERED INSTITUTE OF PERSONNEL AND DEVELOPMENT.
Chicago Style aipamenaGILLEN TERRY. PERFORMANCE MANAGEMENT & APPRAISAL. 1st. LONDON: CHARTERED INSTITUTE OF PERSONNEL AND DEVELOPMENT, 2009.
MLA aipamenaGILLEN TERRY. PERFORMANCE MANAGEMENT & APPRAISAL. 1st. CHARTERED INSTITUTE OF PERSONNEL AND DEVELOPMENT, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.