National Association of Australian State Road Authorities. (1976). Guide to traffic engineering practice (4th ed.). National Association of Australian State Road Authorities.
Cita Chicago (17th ed.)National Association of Australian State Road Authorities. Guide to Traffic Engineering Practice. 4th ed. Sydney: National Association of Australian State Road Authorities, 1976.
Cita MLA (8th ed.)National Association of Australian State Road Authorities. Guide to Traffic Engineering Practice. 4th ed. National Association of Australian State Road Authorities, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.