000			00737nam a2200157 a 4500
005			20220228110622.0
035			_aF8901000708781
084			_aPCA BUL D31 1959
100			_aKriz, Ladislav B.
245			_aUltimate strength criteria for reinforced concrete / by Lad-islav B. Kriz.
260			_aSkokie, Illinois : atories, Development Department
300			_a[16] p.
440			_aBulletin D31 / Portland Cement Association, Research and De-velopment Laboratories, Development Department
500			_a"Reprinted from the Journal of the Engineering Mechanics Di-vision, Proceedings of the American Society of Civil Engine-ers, Proc. paper 2095, vol. 85, No. EM 3, 1959."
690			_aPiezas estructurales - Criterios de resistencia.
999			_c58798 _d58798