| 其他書名 | Balancing the Scale : Proceedings of a Workshop Held at the Stouffer Concourse Hotel, Denver, Colorado, May 19 and 20, 1994 |
| 出版 | Wyoming Game and Fish Department, Fish Division, 1994 |
| URL | http://books.google.com.hk/books?id=s30UAQAAMAAJ&hl=&source=gbs_api |