Παραπομπή APA

Whitehead, H. (1937). Administration of marketing and selling. Isaac pitman &sons.

Παραπομπή Chicago Style

Whitehead, Harold. Administration of Marketing and Selling. London: Isaac pitman &sons, 1937.

Παραπομπή MLA

Whitehead, Harold. Administration of Marketing and Selling. Isaac pitman &sons, 1937.