Cita APA (7th ed.)

Stone, B. f., & Wyman, J. (1985). Successful telemarketing: Opportunities and techniques for increasing sales and profits. Prentice-Hall.

Cita Chicago (17th ed.)

Stone, Bob fl., i John Wyman. Successful Telemarketing: Opportunities and Techniques for Increasing Sales and Profits. Englewood Cliffs, NJ: Prentice-Hall, 1985.

Cita MLA (9th ed.)

Stone, Bob fl., i John Wyman. Successful Telemarketing: Opportunities and Techniques for Increasing Sales and Profits. Prentice-Hall, 1985.