Books by Bruce B. Ackerman:
Books in the extended shelves:
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Ackerman, Bruce B. (Bruce Bennet): Population biology of the Florida manatee (U.S. Dept. of the Interior, National Biological Service, 1995), also by Thomas J. O'Shea, H. Franklin Percival, and United States National Biological Service (page images at HathiTrust)
Find more by Bruce B. Ackerman at your library, or elsewhere.