| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Community Sourcebook of ZIP Code Demographics 1998 | 978-0-918417-71-8 (0-918417-71-6) | 1998 |
| Sourcebook America 1998 DOS Version | 978-0-918417-70-1 (0-918417-70-8) | 1997 |
| The Sourcebook of County Demographics | 978-0-918417-72-5 (0-918417-72-4) | 1998 |