00325nam a2200133Ia 4500008004100000020000700041040003000048082001400078100001600092245003000108260003000138300001100168650001200179190302s9999||||xx |||||||||||||| ||und||  c20  aKharagpur College Library  a530bM597  aS. N. Mitra  aCollege Practical Physics  bA.MukarjeeaKolkatac1974  a478 p.  aPhysics