APA

U.S. Congress. Hearings no 93-26, . (1973). To conserve energy on the national system of interstate and defense highways. Washington DC: U.S. Congress. Hearings no 93-26.

Chicago

U.S. Congress. Hearings no 93-26, . 1973. To conserve energy on the national system of interstate and defense highways. Washington DC: U.S. Congress. Hearings no 93-26.

Harvard

U.S. Congress. Hearings no 93-26, . (1973). To conserve energy on the national system of interstate and defense highways. Washington DC: U.S. Congress. Hearings no 93-26.

MLA

U.S. Congress. Hearings no 93-26, . To conserve energy on the national system of interstate and defense highways. Washington DC: U.S. Congress. Hearings no 93-26. 1973.