Wagner, Edmund G.
Water supply for rural areas and small communities - 1959 World Health Organization - 337 p. illus. 25 cm. - World Health Organization. Monograph series .
60000076
RURAL CONDITIONS
WATER SUPPLY
Water supply for rural areas and small communities - 1959 World Health Organization - 337 p. illus. 25 cm. - World Health Organization. Monograph series .
HEA B00703
- Original series title: World Health Organization. Monograph series, No.42.
60000076
RURAL CONDITIONS
WATER SUPPLY