00277    a2200097   4500082001600000100001700016245003900033260005700072300002700129650002300156  a624.221 PON  aPonnuswamy,S  aBridge Engineering /cS.Ponnuswamy  aNew Delhi :cTata McGraw Hill Publishing Comp,b2005  a560P. :bill . ;c25CM  aBridge Engineering