"Cosponsored by: Geological Survey, U.S. Department of the Interior; Fish and Wildlife Service, U.S. Department of the Interior; U.S. Environmental Protection Agency; Man and the Biosphere Program, U.S. Department of State."
"July 1981."
Bibliography
Includes bibliographical references and index
Notes
S/N 041-011-00058-1
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Online resource (HathiTrust, HeinOnline, viewed February 7, 2018)