00281nam a22001217a 4500040000900000082001300009100001800022245004800040250002000088260003400108300001000142500000700152  cNUST  a660bDAR  aDr. S.S. Dara  aBasic Engineering Chemistry/cDr. S.S. Dara  aRevised Edition  aNew Delhi :bS.Chand; c2004.  a280p.  aHB