00296nam a2200121Ia 4500008004100000100002600041245003700067260002500104300000900129650001200138942000700150999001700157190216s9999||||xx |||||||||||||| ||und||  aOuseph Devassy Thomas 2aA Text Book Of Practical Physics  bViswanathan S.c1966  a286p  aPhysics  cBK  c33252d33252