00320nam a2200121Ia 4500008004100000020001500041041001200056100001700068245005200085260003300137300000900170650001900179221030s9999    xx            000 0 und d  a8174091955  aEnglish  aB. S. Grewal 0aHigher Engineering Mathematicscby B. S. Grewal  bKhanna Pub.aNew Delhic2015  a1315  aBE Mathematics