000
00257nam a2200097Ia 4500
008
231207s9999 xx 000 0 und d
082
_a
628.7
_b
WRI
100
_a
Wright, Forrest B.
245
0
_a
Rural water supply and sanitation
260
_b
John Wiley & Sons Inc.
999
_c
1968
_d
1968