00290nam a2200133Ia 4500020000900000082000800009100003700017245003700054250001000091260003200101300000800133500000900141650000600150  aNULL  a510  aWartikar, P. N./ Waritkar, J. N. 0aEngineering Mathematics Part - 1  aFirst  aPunebPune Vidhyarthi Gruha  a406  a6126  a-