00311nam a2200145Ia 4500008004100000082000800041082000800049100001900057245002500076260001400101260001900115260000900134300000600143650001600149230706s9999    xx            000 0 und d  a510  bSIN  aSINHA(Dr.K.C.) 0aDiffrential Calculas  aNew Delhi  bEduwiser Group  c2012  a6  aMathematics