00321nam a2200121Ia 4500008004100000041001200041082001500053100001200068245004200080260004900122300000800171650002000179231217s9999    xx            000 0 und d  aEnglish  a515  GUP;3  aGupta R 0aVector calculus (Golden maths series)  c1999bNew Delhi : New Delhi : Laxmi Publ.,.,  a220  aVector calculus