00453nam a2200169Ia 4500003000400000005001700004008004100021020000800062040002700070041000800097082001600105100003200121245004400153264005900197300001500256650001200271AIT20260520164929.0221231s9999    xx            000 0 und d  c165  aATRIAbengcAITeAACR2  aeng  222a539 RAO  aRao, Narayana B. V.eAuthor 0aModern Physicsc/bby Narayana Rao B. V.34aNew Delhi :bNew Age International Pvt. Ltd.,c©1992.  aXX, 604 p.  aPhysics