Stone, B. W. (1989). Successful Telemarketing: Opportunities and techniques for increasing sales and profits.
Citación estilo ChicagoStone, Bob; Wyman. Successful Telemarketing: Opportunities and Techniques for Increasing Sales and Profits. NTC Business Books: Illinois, 1989.
Cita MLAStone, Bob; Wyman. Successful Telemarketing: Opportunities and Techniques for Increasing Sales and Profits. 1989.
Warning: These citations may not always be 100% accurate.