00374cam a2200133u  4500008004100000020001500041100001900056245003900075250001300114260004700127300002400174650002600198050001600224830216s1964    ii a          000 0 eng    a81855946861 aRingwala, S. N10aPrinciples of railway engineering;  a9th  ed.  aAnand, India,bCharotar Book Stall,c1964.  axvi, 400 p.billus. 0aRailroad engineering.00aTF146b.R33