000 00255 a2200109 4500
020 _a8176254541
100 _aBROWN, D.R.
245 _aPROBLEMS IN OPTICS (WAVES AND OSCILLATIONS)
250 _a1
260 _bSARUP AND SONS, NEW DELHI
_c2023
942 _cBK
999 _c88016
_d88016