00363nam a2200157Ia 4500008004100000020000900041035000900050082002200059100003000081245002600111250000800137260003700145300000800182500000900190650000600199210723s9999||||xx |||||||||||||| ||und||  aNULL  a8024  a517.38BSHA / GUP  aSharma, J. N./gupta R. K. 0aDifferential Equation  a5th  aMeerutbKrishna Prakashan Mandir  a104  a1672  a-