Παραπομπή APA

Drucker, P. F. (1977). Practice of management. Allied Publishers Pvt. Ltd.

Παραπομπή Chicago Style

Drucker, Peter F. Practice of Management. New Delhi: Allied Publishers Pvt. Ltd, 1977.

Παραπομπή MLA

Drucker, Peter F. Practice of Management. Allied Publishers Pvt. Ltd, 1977.