APA

U.S. Congress. Hearings [93-14], . (1973). Highway safety, design and operations. Narrow bridges - driver dilemmas. Washington: U.S. Congress. Hearings [93-14].

Chicago

U.S. Congress. Hearings [93-14], . 1973. Highway safety, design and operations. Narrow bridges - driver dilemmas. Washington: U.S. Congress. Hearings [93-14].

Harvard

U.S. Congress. Hearings [93-14], . (1973). Highway safety, design and operations. Narrow bridges - driver dilemmas. Washington: U.S. Congress. Hearings [93-14].

MLA

U.S. Congress. Hearings [93-14], . Highway safety, design and operations. Narrow bridges - driver dilemmas. Washington: U.S. Congress. Hearings [93-14]. 1973.