00330nam a2200157Ia 4500008004100000020000900041035000900050082001900059100003100078245002000109250000600129260001700135300000800152500000600160650000600166210723s9999||||xx |||||||||||||| ||und||  aNULL  a8485  a535BSUB / LAL  aSubrahmanyam, N/ Lal, Brij 0aT. B. Of Optics  a-  aNew Delhib-  a527  a0  a-