American Association of State Highway and Transportation Officials. (2013). AASHTO LRFD Bridge Desing Specifications (6th edition.). Washington, DC.: ASSHTO.
Citación estilo ChicagoAmerican Association of State Highway and Transportation Officials. AASHTO LRFD Bridge Desing Specifications. 6th edition. Washington, DC.: ASSHTO, 2013.
Cita MLAAmerican Association of State Highway and Transportation Officials. AASHTO LRFD Bridge Desing Specifications. 6th edition. Washington, DC.: ASSHTO, 2013.
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