| 其他書名 | A Seminar : U.S. Bureau of Sport Fisheries and Wildlife, Northern Prairie Wildlife Research Center, Jamestown, North Dakota, April 9-10, 1969 |
| 出版 | Northern Prairie Wildlife Research Center, 1969 |
| URL | http://books.google.com.hk/books?id=DCWuHwAACAAJ&hl=&source=gbs_api |