| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Start Your Own Information Broker Service | 978-0-89384-286-4 (0-89384-286-9) | 1995 | Pfeiffer |
| Start Your Own Information Broker Service: Business | 978-0-13-603317-2 (0-13-603317-2) | 1995 | National Business Library |
| Start Your Own Newsletter Publishing Business | 978-0-13-603333-2 (0-13-603333-4) | 1996 | |