United States. Congress. House. Committee on Education and Labor. (1972). Oversight hearing on elementary and secondary education: Hearing, Ninety-second Congress, second session.. Washington: U.S. Govt. Print. Off..

United States. Congress. House. Committee on Education and Labor. Oversight Hearing On Elementary and Secondary Education: Hearing, Ninety-second Congress, Second Session.. Washington: U.S. Govt. Print. Off., 1972.

United States. Congress. House. Committee on Education and Labor. Oversight Hearing On Elementary and Secondary Education: Hearing, Ninety-second Congress, Second Session.. Washington: U.S. Govt. Print. Off., 1972.