Conservation and efficient use of energy. Joint hearings before certain subcommittees of the Committees on Government Operations and Science and Astronautics, House of Representati...

by United States. Congress. House. Committee on Government Operations. Conservation and Natural Resources Subcommittee.
Published: U.S. Govt. Print. Off., 1973

Effects of population growth on natural resources and the environment. Hearings before a subcommittee of the Committee on Government Operations, House of Representatives, Ninety-fi...

by United States. Congress. House. Committee on Government Operations. Conservation and Natural Resources Subcommittee.
Published: U.S. Govt. Print. Off., 1969

Mercury pollution and enforcement of the Refuse act of 1899. Hearing before a subcommittee of the Committee on Government Operations, House of Representatives, Ninety-second Congre...

by United States. Congress. House. Committee on Government Operations. Conservation and Natural Resources Subcommittee.
Published: U.S. Govt. Print. Off., 1971

Enforcement of the Refuse act of 1899 : eighteenth report

by United States. Congress. House. Committee on Government Operations. Conservation and Natural Resources Subcommittee.
Published: U.S. Govt. Print. Off., 1972

The establishment of a national industrial wastes inventory : hearing before a subcommittee of the Committee on Government Operations, House of Representatives, Ninety-first Congre...

by United States. Congress. House. Committee on Government Operations. Conservation and Natural Resources Subcommittee.
Published: U.S. G.P.O., 1970