Παραπομπή APA

Drucker, P. F. (1974). Management: Tasks, responsibilities, practices. Heinemann.

Παραπομπή Chicago Style

Drucker, Peter F. Management: Tasks, Responsibilities, Practices. London: Heinemann, 1974.

Παραπομπή MLA

Drucker, Peter F. Management: Tasks, Responsibilities, Practices. Heinemann, 1974.