| 其他書名 | Proceedings of the First Biennial Scientific Conference on the Greater Yellowstone Ecosystem |
| 出版 | U.S. National Park Service, Natural Resources Publication Office, 1994 |
| URL | http://books.google.com.hk/books?id=ePgq_j4IOWgC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |