by David G. Ainley ...[and others] ; with drawings by Helen C. Strong ; performed for National Coastal Ecosystems Team, Office of Biological Services, Fish and Wildlife Service, U.S. Department of the Interior
by Donald F. Boesch ... [and others] ; performed for National Coastal Ecosystems Team, Division of Biological Services, Fish and Wildlife Service, U.S. Department of the Interior
by Charles H. Wharton ... [and others] ; performed for National Coastal Ecosystems Team, Biological Services Program, Fish and Wildlife Service, U.S. Department of the Interior
by Leonard M. Bahr, Jr. ... [and others] ; prepared for National Coastal Ecosystems Team, Division of Biological Services, Fish and Wildlife Service, U.S. Department of the Interior