APA
U.S. Congress. Hearings [92-40], . (1972). Highway safety, design and operations. Operational deficiencies. Washington: U.S. Congress. Hearings [92-40].
Chicago
U.S. Congress. Hearings [92-40], . 1972. Highway safety, design and operations. Operational deficiencies. Washington: U.S. Congress. Hearings [92-40].
Harvard
U.S. Congress. Hearings [92-40], . (1972). Highway safety, design and operations. Operational deficiencies. Washington: U.S. Congress. Hearings [92-40].
MLA
U.S. Congress. Hearings [92-40], . Highway safety, design and operations. Operational deficiencies. Washington: U.S. Congress. Hearings [92-40]. 1972.