00309nam a2200121 4500020002300000020002700023082001500050100001400065245003100079260004200110300000800152650002700160 a0070023484 ( pbk ) a9780070023482 ( pbk ) a624.171ARM aArmenakas aModern Structural Analysis aNew Delhi:bTata Mc-Graw Hill,c1991. a722 aStructural Engineering