000 00289nam a2200109Ia 4500
008 220729s2014 xx 000 0 und d
041 _aeng
100 _aKhurana A.K
245 _aTheory and practice of optics and refraction
250 _a3
260 _aIndia
_bElesevier Publications
_c2014
999 _c135353
_d135353