00370nam a2200157Ia 4500003000400000005001700004008004100021040001100062082001400073100001500087245003800102250000800140260003900148300000900187650001600196OSt20240308211928.0230106s9999    xx            000 0 und d  cMRSPTU  a510bGR-H  aGrewal,B.S 0aElementry engineering mathematics  a1st  aNew DelhibKhanna Publishersc1991  a1084  aMathematics