000 00251nam a2200109Ia 4500
008 160710s1942 xx 000 0 und d
100 _aBOAST, W B
245 _aILLUMINATION ENGINEERING
260 _bMCGRAW-HILL
_c1942
300 _a274
942 _2ddc
_cB
999 _c6813
_d6813