00321nam a2200133Ia 4500008004100000020000800041040003000049082001300079100001400092245002400106260003000130300001100160650001600171190302s9999||||xx |||||||||||||| ||und||  c250  aKharagpur College Library  a517bDAS  aB. C. Das  aDifferntal Calculus  bU. N. DhuraKolkatac1990  a469 p.  aMathematics