APA

United States, . (1968). Youth camp safety standards: Hearings, Ninetieth Congress, second session, on H.R. 17131 and H.R. 17307 ... July 25 and September 18, 1968. Washington: U.S. Govt. Print. Off.

Chicago

United States, . 1968. Youth camp safety standards: Hearings, Ninetieth Congress, second session, on H.R. 17131 and H.R. 17307 ... July 25 and September 18, 1968. Washington: U.S. Govt. Print. Off.

Harvard

United States, . (1968). Youth camp safety standards: Hearings, Ninetieth Congress, second session, on H.R. 17131 and H.R. 17307 ... July 25 and September 18, 1968. Washington: U.S. Govt. Print. Off.

MLA

United States, . Youth camp safety standards: Hearings, Ninetieth Congress, second session, on H.R. 17131 and H.R. 17307 ... July 25 and September 18, 1968. Washington: U.S. Govt. Print. Off. 1968.