APA

United States, . (1967). U.S. ocean cruise vessels: hearings, Ninetieth Congress, first session ... October 24, 25, November 7, 1967. Washington: U.S. Govt. Print. Off.

Chicago

United States, . 1967. U.S. ocean cruise vessels: hearings, Ninetieth Congress, first session ... October 24, 25, November 7, 1967. Washington: U.S. Govt. Print. Off.

Harvard

United States, . (1967). U.S. ocean cruise vessels: hearings, Ninetieth Congress, first session ... October 24, 25, November 7, 1967. Washington: U.S. Govt. Print. Off.

MLA

United States, . U.S. ocean cruise vessels: hearings, Ninetieth Congress, first session ... October 24, 25, November 7, 1967. Washington: U.S. Govt. Print. Off. 1967.