000 00384nam a2200121 a 4500
005 20220228110720.0
035 _aF8901000715704
084 _aPCA ST 78 1955
245 _aUltimate strength theory simplifies combined bending-and ax-ial-load design / Portland Cement Association.
260 _aSkokie, Illinois. : P C A
300 _a7 p.
690 _aResistencia Limite DiseƱo, Teoria.
999 _c62602
_d62602