00351nam a2200133Ia 4500008004100000020001800041041001200059100001500071245005100086260003600137300000800173650001900181700001700200221030s9999    xx            000 0 und d  a9788121906814  aEnglish  aS. Narayan 0aIntegral Calculuscby S. Narayan, P. K. Mittal  bS. Chand & Co.aNew Delhic2021  a592  aBE Mathematics  aP. K. Mittal