APA

United States, . (1970). Needs of elementary and secondary education for the seventies: Hearings, Ninety-first Congress, first [and second] session[s]. Washington: U.S. Govt. Print. Off.

Chicago

United States, . 1970. Needs of elementary and secondary education for the seventies: Hearings, Ninety-first Congress, first [and second] session[s]. Washington: U.S. Govt. Print. Off.

Harvard

United States, . (1970). Needs of elementary and secondary education for the seventies: Hearings, Ninety-first Congress, first [and second] session[s]. Washington: U.S. Govt. Print. Off.

MLA

United States, . Needs of elementary and secondary education for the seventies: Hearings, Ninety-first Congress, first [and second] session[s]. Washington: U.S. Govt. Print. Off. 1970.