000
00287nam a2200109Ia 4500
008
220201s1958 xx 000 0 eng d
100
_a
Ehlers, Victor M & Steel, Ernest W
245
0
_a
Municipal & rural sanitation
260
_b
Mc Graw Hill Book Co
_c
1958
300
_a
596
942
_2
ddc
999
_c
71170
_d
71170