| 其他書名 | Proceedings of Sessions Sponsored by the U.S. Man and the Biosphere Program at the First International Rangeland Congress, Denver, Colorado, U.S.A., August, 1978 |
| 出版 | U.S. Man and the Biosphere Program, 1980 |
| URL | http://books.google.com.hk/books?id=epaC9LpdV9AC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |