Roman, M. (1976). Telephone marketing: How to build your business by telephone. McGraw-Hill.
Chicago-Zitierstil (17. Ausg.)Roman, Murray. Telephone Marketing: How to Build Your Business by Telephone. New York: McGraw-Hill, 1976.
MLA-Zitierstil (9. Ausg.)Roman, Murray. Telephone Marketing: How to Build Your Business by Telephone. McGraw-Hill, 1976.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.