Online Books by
Richard D. Porter
Books from the extended shelves:
- Porter, Richard D.: DDE, DDT + dieldrin : residues in American kestrels and relations to reproduction (Washington, D.C. : U.S. Dept. of the Interior, Fish and Wildlife Service, 1986., 1986), also by Stanley N. Wiemeyer, John R. Maestrelli, Gary L. Hensler, and U.S. Fish and Wildlife Service (page images at HathiTrust)
- Porter, Richard D.: Waterfowl damage and control methods in ripening grain : an overview (U.S. Dept. of the Interior, Fish and Wildlife Service, 1987), also by C. Edward Knittle and U.S. Fish and Wildlife Service (page images at HathiTrust)
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