Cita APA

American Association of State Highway and Transportation Officials. (2008). AASHTO LRFD Bridge Desing Specifications: Customary U.S. units (4th edition.). Washington, DC.: ASSHTO.

Citación estilo Chicago

American Association of State Highway and Transportation Officials. AASHTO LRFD Bridge Desing Specifications: Customary U.S. Units. 4th edition. Washington, DC.: ASSHTO, 2008.

Cita MLA

American Association of State Highway and Transportation Officials. AASHTO LRFD Bridge Desing Specifications: Customary U.S. Units. 4th edition. Washington, DC.: ASSHTO, 2008.