Παραπομπή APA

O'Shaughnessy, J. (1971). Evaluate your sales force. Management publications.

Παραπομπή Chicago Style

O'Shaughnessy, J. Evaluate Your Sales Force. London: Management publications, 1971.

Παραπομπή MLA

O'Shaughnessy, J. Evaluate Your Sales Force. Management publications, 1971.