000 00252nam a2200121Ia 4500
100 _aKHANNA, D.R.
110 _aGULATI, H.R.
245 _aFUNDAMENTALS OF OPTICS
250 _a15
260 _bR. CHAND & CO.
_c1991
300 _a675
942 _2ddc
_cBB
999 _c73173
_d73173