00291nam a2200121Ia 4500008004100000020001800041082001500059100001500074245002500089250001100114260003600125300000800161190710s9999    xx            000 0 und d  a81-7556-163-7  a515.5 G959  aGupta, P P 0aMathematical methods  a3rd ed  aMeerutbPragati Prakashanc2000  a348