Biological diversity/prospects and problems : hearings before the Subcommittee on Natural Resources, Agriculture Research and the Environment of the Committee on Science, Space and Technology, United States House of Representatives, one hundredth Congress, first session, May 28, September 22, 1987.
United States.Congress.House.Committee on Science, Space, and Technology.Subcommittee on Natural Resources, Agriculture Research, and Environment.
Washington : U.S.G.P.O.,
1988.
Biological diversity