000
00262nam a2200121Ia 4500
008
220201s1963 xx 000 0 eng d
082
_a
624.183
100
_a
Elvery, RH
245
0
_a
Concrete practice
260
_b
Bomaby
_c
1963
300
_a
216
942
_2
ddc
999
_c
74817
_d
74817