000 00227nam a2200097Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aWALKER(BRUCEK)
245 0 _aOPTICAL ENGG. FUNDAMENTALS
260 _bPHI
942 _2ddc
_cMTECH
999 _c2850
_d2850