Hubbartt, W. S. (1992). Performance appraisal manual: For managers and supervisors ; a guide to effective performance appraisal. Commerce Clearing House.
Chicago-Zitierstil (17. Ausg.)Hubbartt, William S. Performance Appraisal Manual: For Managers and Supervisors ; a Guide to Effective Performance Appraisal. Chicago, Ill: Commerce Clearing House, 1992.
MLA-Zitierstil (9. Ausg.)Hubbartt, William S. Performance Appraisal Manual: For Managers and Supervisors ; a Guide to Effective Performance Appraisal. Commerce Clearing House, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.