00279nam a2200121Ia 4500008004100000082000800041082001000049100002000059245002600079260001400105260002900119260000900148230118s9999||||xx |||||||||||||| ||und||  a535  bSUB/A  anbsubrahmanyam 2aa text book of optics  anew delhi  bs. chand and company ltd  c1993