Franklin

MLA

Highway Safety, Design and Operations: Freeway Signing and Related Geometrics: Hearings Before the United States House Committee On Public Works, Special Subcommittee On Federal-aid Highway Program, Ninetieth Congress, Second Session, On May 7-9, July 9-11, 16-18, 1968. Washington: U.S. G.P.O., 1968.

APA

(1968). Highway Safety, Design and Operations: Freeway Signing and Related Geometrics: hearings before the United States House Committee on Public Works, Special Subcommittee on Federal-Aid Highway Program, Ninetieth Congress, second session, on May 7-9, July 9-11, 16-18, 1968. Washington: U.S. G.P.O.

Chicago

Highway Safety, Design and Operations: Freeway Signing and Related Geometrics: Hearings before the United States House Committee On Public Works, Special Subcommittee On Federal-Aid Highway Program, Ninetieth Congress, Second Session, On May 7-9, July 9-11, 16-18, 1968. Washington: U.S. G.P.O., 1968.