Παραπομπή APA

Drucker, P. F. (1999). Management: Tasks, responsibilities, practices. Allied Publishers.

Παραπομπή Chicago Style

Drucker, Peter F. Management: Tasks, Responsibilities, Practices. New Delhi: Allied Publishers, 1999.

Παραπομπή MLA

Drucker, Peter F. Management: Tasks, Responsibilities, Practices. Allied Publishers, 1999.