Παραπομπή APA

Drucker, P. F. (1969). Preparing tommorrows business leaders today. Prentice Hall.

Παραπομπή Chicago Style

Drucker, Peter F. Preparing Tommorrows Business Leaders Today. New Jersey: Prentice Hall, 1969.

Παραπομπή MLA

Drucker, Peter F. Preparing Tommorrows Business Leaders Today. Prentice Hall, 1969.