| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Direct Marketing Rules of Thumb: 1,000 Practical and Profitable Ideas to Help You Improve Response, Save Money, and Increase Efficiency in Your Direct Program | 978-0-07-006340-2 (0-07-006340-0) | 1995 |
| Direct Marketing Rules of Thumb: 1000 Practical and Profitable Ideas to Help You Improve Response, Save Money and Increase Efficiency in Your Direct Program | 978-0-07-113297-8 (0-07-113297-X) | 1995 |