American Association of State Highway and Transportation Officials. (1994). AASHTO LRFD bridge design specifications. American Association of State Highway and Transportation Officials.
Cita Chicago (17th ed.)American Association of State Highway and Transportation Officials. AASHTO LRFD Bridge Design Specifications. Washington, D.C.: American Association of State Highway and Transportation Officials, 1994.
Cita MLA (8th ed.)American Association of State Highway and Transportation Officials. AASHTO LRFD Bridge Design Specifications. American Association of State Highway and Transportation Officials, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.