00297nam a2200121Ia 4500008004100000100002600041245003700067260002500104300001000129650001200139942000700151999001700158190216s9999||||xx |||||||||||||| ||und||  aOuseph Devassy Thomas 2aA Text Book Of Practical Physics  bS Vishwanathanc1968  a270 p  aPhysics  cBK  c32791d32791