| 其他書名 | Waterfowl Numbers, Distribution, Behavior, and Harvest in Relation to Feeding Programs on Southern California Duck Clubs : Final Report |
| 出版 | Office of Migratory Bird Management, U.S. Department of the Interior, 1980 |
| URL | http://books.google.com.hk/books?id=WcIYAQAAIAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |