00291nam a2200109Ia 4500008004100000082002100041100004000062245002500102250000900127260003600136300000900172240913s9999||||xx |||||||||||||| ||und||  aGS    510  GUP/M  aPP Gupta, GS Malik and Sanjay Gupta 0aMathematical methods  aNULL  bPragati PrakashanaMeerutc1989  a348p