Prentice Hall · Warren Gorham & Lamont
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| How to Manage and Help Salesmen | 978-0-88712-001-5 (0-88712-001-6) | 1966 | |
| Los Secretos del Cierre de Ventas | 978-970-17-0206-2 (970-17-0206-9) | 1999 | Roy Alexander |
| Secrets of Closing Sales: 6th Edition | 978-0-13-671512-2 (0-13-671512-5) | 1997 | " |
B. Roth · C B · C.R. · C. Roth · Charles B. · Charles R. · Charles Roth