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Description: |
v, 397 pages : illustrations ; 28 cm. |
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Sponsored by the National Wildlife Federation in cooperation with the U.S. Geological Survey [and other agencies]. |
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Bibliography Note: |
Includes bibliographical references. |
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Additional Physical Forms: |
Online version: William T. Pecora Memorial Symposium (4th : 1978 : Sioux Falls, S.D.) Pecora IV, proceedings of the symposium. Sioux Falls, S.D. : National Wildlife Federation, [1979?] (OCoLC)904147930 |