Long-range planning : joint hearings before the Subcommittee on Fisheries and Wildlife Conservation and the Environment of the Committee on Merchant Marine and Fisheries, and the Subcommittee on the Environment and the Atmosphere of the Committee on Science and Technology, House of Representatives, Ninety-fourth Congress, second session on the capability of the federal government to utilize long-range planning to anticipate and prevent future environmental crises, June 28, 30, 1976. (U.S. Govt. Print. Off,, 1976)