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Federal water pollution control : Hearings before the Committee on Public Works, House of Representatives, Eighty-seventh Congress, first session, on H. R. 4036, to amend the Federal water pollution control act
- "Federal water pollution control : Hearings before the Committee on Public Works, House of Representatives, Eighty-seventh Congress, first session, on H. R. 4036, to amend the Federal water pollution control act"
- "Federal water pollution control: hearings before the Committee on Public Works, House of Representatives, Eighty-seventh Congress, first session, on H.R. 4036, to amend the Federal water pollution control act"