000 00322nam a22001457a 4500
020 _a9789382105268
082 _a535
_bTYA
100 _aTyagi,Piyoosh kumar
245 _aTextbook of optics
260 _aVaranasi
_bGreen leaf
_c2013
300 _a275p.
650 _amirror optics
650 _ageometric optics
942 _cBK
999 _c245471
_d245471