Drilled shafts : construction procedures and LRFD design methods : reference manual - Brown, Dan A. (National Highway Institute, 2010)
Publication No. FHWA-NHI-10-016--FHWA GEC 010--A la cabeza de la port.: NHI Course No.132014--"Developed following: AASHTO LRDF Bridge design specifications, 4th edition, 2007, with 2008 and 2009 interims"--Cubierta tomada como sustituto de la portada