Παραπομπή APA

Wage, J. (1973). How to use the telephone in selling. Gower press.

Παραπομπή Chicago Style

Wage, J.L. How to Use the Telephone in Selling. London: Gower press, 1973.

Παραπομπή MLA

Wage, J.L. How to Use the Telephone in Selling. Gower press, 1973.