| title | ISBN-13 | year of publica- tion |
|---|---|---|
| Gems and Minerals of America: A Guide to Rock Collecting | 978-0-06-013512-6 | 1975 |
| Gold Hunter's Field Book | 978-0-06-090775-4 | 1980 |
| Harper & Row's Complete Field Guide to North American Wildlife, Western Edition | 978-0-06-181715-1 | 1981 |
| The Gold Hunter's Field Book | 978-0-06-013511-9 | 1975 |