Não informado. (1976). AASHTO Quarterly. American Association of State Highway and Transportation Officials.
Cita Chicago Style (17a ed.)Não informado. AASHTO Quarterly. Washington: American Association of State Highway and Transportation Officials, 1976.
Cita MLA (8a ed.)Não informado. AASHTO Quarterly. American Association of State Highway and Transportation Officials, 1976.
Precaución: Estas citas no son 100% exactas.