Cita APA (7th ed.)

Roman, M. (1976). Telephone marketing: How to build your business by telephone. McGraw-Hill.

Cita Chicago (17th ed.)

Roman, Murray. Telephone Marketing: How to Build Your Business by Telephone. New York: McGraw-Hill, 1976.

Cita MLA (8th ed.)

Roman, Murray. Telephone Marketing: How to Build Your Business by Telephone. McGraw-Hill, 1976.