APA

United States, . (1968). Preschool and early education programs for handicapped children: Hearings, Ninetieth Congress, second session, on H.R. 17829 ... July 16 and 17, 1968. Washington: U.S. Govt. Print. Off.

Chicago

United States, . 1968. Preschool and early education programs for handicapped children: Hearings, Ninetieth Congress, second session, on H.R. 17829 ... July 16 and 17, 1968. Washington: U.S. Govt. Print. Off.

Harvard

United States, . (1968). Preschool and early education programs for handicapped children: Hearings, Ninetieth Congress, second session, on H.R. 17829 ... July 16 and 17, 1968. Washington: U.S. Govt. Print. Off.

MLA

United States, . Preschool and early education programs for handicapped children: Hearings, Ninetieth Congress, second session, on H.R. 17829 ... July 16 and 17, 1968. Washington: U.S. Govt. Print. Off. 1968.