Species, age, and sex identification of ducks using wing plumage /
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of the Interior, U.S. Fish and Wildlife Service, 1992.
[date of publication not identified]
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| Item Description: | Shipping list number: 92-0624-P. |
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| Physical Description: | iii, 144 pages : illustrations (some color) ; 26 cm. |