00304n   a2200121 a 4500000002100000001000700021005001700028082002100045100001500066245004300081260004400124300001400168B B                 00800120220201172901.0  a519.5024381bN93  aMonga, G S  aMathematics & Statistics for Economics  aNew DelhibVikas Publishing Housec1993  axiv,623p.