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Description: |
17 pages : illustrations ; 26 cm |
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Bibliography Note: |
Includes bibliographical references (pages 16-17). |
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Additional Physical Forms: |
Online version: Hammond, Merrill C. Effects of weather on breeding ducks in North Dakota. Washington, D.C. : U.S. Dept. of the Interior, Fish and Wildlife Service, 1984 (OCoLC)817050396 |
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Name Added Entry: |
Johnson, Douglas H., author. |