00342nam a2200145Ia 4500008004100000020002200041082000800063082001000071100002600081100001200107245002600119260001300145260002900158260000900187230118s9999||||xx |||||||||||||| ||und||  a978-81-219-2611-9  a535  bSUB/A  adr.n   bsubrahmanyam  bbrijlal 2aa text book of optics  anewdelhi  bs. chand and company ltd  c1966