| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Roads and trails of Olympic National Park | 978-0-295-95819-4 (0-295-95819-7) | 1981 |
| Roads and Trails of Olympic National Park | 978-0-295-95533-9 (0-295-95533-3) | 1976 |
| Roads and trails of Olympic National Park. | 978-0-295-95143-0 (0-295-95143-5) | 1971 |