| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Hunting for Fossils: A Guide to Finding and Collecting Fossils in All Fifty States | Paperback | 978-0-02-093550-6 (0-02-093550-1) | 1974 |
| Hunting for Fossils: A Guide to Finding and Collecting Fossils in All Fifty States | Hardcover | 978-0-02-588150-1 (0-02-588150-7) | 1967 |
| Plant Wizard; The Life of Lue Gim Gong. | Library Binding | 978-0-02-767750-8 (0-02-767750-8) | 1970 |