TY - BOOK ED - Journal of American Concrete Institute TI - Building code requeriments for reiforced concrete (aci 318-56) AV - TA6331 B85 PY - 1956/// CY - Michigan PB - Journal of american concrete institute KW - IngenierĂ­a estructural N1 - "adopted as a standard of the american concrete institute at its 52nd annual convention, february 21, 1956, as reported by committee 318 ratified by letter ballot april 30, 1956 ER -