00326nam a2200121Ia 4500008004000000082001300040100002400053245003100077250000500108260004400113300001400157650003300171210210b1965   xxu||||| |||| 00| 0 eng d  a535 RAOB  aRAO (R Chalapathi).  aB Sc physics: light. Ed 2.  a  aGunturbCommercial Literature Co.c1965  aii,231,ii  aB.Sc.  Question Answer Light