APA

United States, . (1972). Environmental quality education act of 1970: Hearing, Ninety-second Congress, second session, on oversight into administration of the Environmental quality education act of 1970. Washington: U.S. Govt. Print. Off.

Chicago

United States, . 1972. Environmental quality education act of 1970: Hearing, Ninety-second Congress, second session, on oversight into administration of the Environmental quality education act of 1970. Washington: U.S. Govt. Print. Off.

Harvard

United States, . (1972). Environmental quality education act of 1970: Hearing, Ninety-second Congress, second session, on oversight into administration of the Environmental quality education act of 1970. Washington: U.S. Govt. Print. Off.

MLA

United States, . Environmental quality education act of 1970: Hearing, Ninety-second Congress, second session, on oversight into administration of the Environmental quality education act of 1970. Washington: U.S. Govt. Print. Off. 1972.