Παραπομπή APA
(1977). Performance appraisal for salesmen: Evaluating and counseling salesmen for greater productivity. New York: Modern Business Reports.
Παραπομπή Chicago StylePerformance Appraisal for Salesmen: Evaluating and Counseling Salesmen for Greater Productivity. New York: Modern Business Reports, 1977.
Παραπομπή MLAPerformance Appraisal for Salesmen: Evaluating and Counseling Salesmen for Greater Productivity. New York: Modern Business Reports, 1977.
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