| 其他書名 | Proceedings of the Fourth Conference on Fossil Resources, October 31-November 4, 1994, Colorado Springs, Colorado |
| 出版 | U.S. Department of the Interior, National Park Service, Natural Resource Program Center, Natural Resource Information Division, 1997 |
| URL | http://books.google.com.hk/books?id=HmLwAAAAMAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |