AASHTO & American Association of State Highway and Transportation Officials. (2017). AASHTO LRFD bridge design specifications (8th edition.). AASHTO.
Cita Chicago (17th ed.)AASHTO i American Association of State Highway and Transportation Officials. AASHTO LRFD Bridge Design Specifications. 8th edition. Washington D.C., USA: AASHTO, 2017.
Cita MLA (9th ed.)AASHTO i American Association of State Highway and Transportation Officials. AASHTO LRFD Bridge Design Specifications. 8th edition. AASHTO, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.