00284nam a2200109Ia 4500008004100000082001500041100002300056245004400079250000900123260003400132300000800166190709s9999    xx            000 0 und d  a530B299I,V  aBasu Nagendra nath 0aHigher secindary s Intermediate physics  a21nd  aCalcutabB. Chand s Co.c1941  a300