000 00377nam a2200157Ia 4500
008 210804s2008||||xx |||||||||||||| ||und||
020 _a9788131211328
041 _aeng
082 _a617.5
_bKHU/TH
100 _aKhurana A K
245 0 _aTheory and practice of optics and refraction
250 _a2nd
260 _aNew delhi
_bElsevier
_c2008
300 _a445
942 _cREF
999 _c1534
_d1534