00298nam a2200109Ia 450000500170000000800410001708200140005810000180007224500480009026000420013830000080018020260224040836.0260224s9999||||xx |||||||||||||| ||und|| a692.4 NIL aNilson, H.A.  0aDesign of concrete structures 10th edition aNew York: Mc-Graw-Hill Book Co.c1986 a730