American Association of State Highway and Transportation Officials (AASHTO), AASHTO LRFD Bridge Design Specifications, 7h Edition with 2015 Interim Revisions.
American Association of State Highway and Transportation Officials (AASHTO), AASHTO LRFD Bridge Design Specifications, 6th Edition with 2013 Interim Revisions, Washington, D.C., 2013.
Canadian Standards Association, Canadian Highway Bridge Design Code, CAN/CSA-S6-06, Mississauga, ON, Canada.