United States. Congress. Senate. Committee on Public Works. Subcommittee on Air and Water Pollution. (1970). Water pollution--1970: Hearings, Ninety-first Congress, second session, on S.3687, S.3468, S.3470, S.3471, S.3472, S.3181, S.3484, S.3500, S.3507, S.3614, S.3688, and S.3697 .. U.S. Govt. Print. Off..
Citação do estilo Chicago (17ª ed.)United States. Congress. Senate. Committee on Public Works. Subcommittee on Air and Water Pollution. Water Pollution--1970: Hearings, Ninety-first Congress, Second Session, on S.3687, S.3468, S.3470, S.3471, S.3472, S.3181, S.3484, S.3500, S.3507, S.3614, S.3688, and S.3697 .. Washington: U.S. Govt. Print. Off., 1970.
Citação MLA (8ª ed.)United States. Congress. Senate. Committee on Public Works. Subcommittee on Air and Water Pollution. Water Pollution--1970: Hearings, Ninety-first Congress, Second Session, on S.3687, S.3468, S.3470, S.3471, S.3472, S.3181, S.3484, S.3500, S.3507, S.3614, S.3688, and S.3697 .. U.S. Govt. Print. Off., 1970.