000
00329nam a2200109Ia 45e0
008
181001s1951 xx 000 0 und d
100
_a
Barrows Williams
245
0
_a
Light, photometry and illuminating Engg.
260
_b
McGraw Hill
_c
1951
300
_a
415
942
_2
ddc
_c
BK
999
_c
870
_d
870