000 00292nam a2200133Ia 4500
008 180613s9999||||xx |||||||||||||| ||und||
041 _aen
082 _a535.2
100 _aSINGH,S.P.
245 0 _aOptics
260 _aMeerut
_bPragati Prakashan
_c1998
300 _axii,560p.
942 _cSR
999 _c79383
_d79383