| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Drive America, Western U. S., Alaska and Hawaii | 978-0-89577-094-3 (0-89577-094-6) | 1981 |
| Illustrated Guide Gardening | 978-0-89577-046-2 (0-89577-046-6) | 1996 |
| Mysteries of the Unexplained | 978-0-89577-146-9 (0-89577-146-2) | 1993 |