000
00294nam a2200109Ia 4500
008
200302s9999 xx 000 0 und d
100
_a
Gilchrist Wilson
245
_a
White Concrete With Some Notes on Black Concrete
260
_b
Cement and Concrete Association
260
_c
1969
300
_a
30 P.,
999
_c
490
_d
490