00254nam a2200097Ia 4500100003400000654003100034245003100065260003500096082001300131546001200144  aWartikar/J.N./ Wartikar/P.N.   aengineering mathematics iv  aEngineering Mathematics iv  bPune VidyarthiaNewDelhic1997  a511bWAR  aENGLISH