TY  - BOOK
AU  - Wright, Forrest B.
TI  - Rural water supply and sanitation
U1  - 628.7 
PY  - 1949/// (c.1939)
CY  - New York
PB  - Wiley
KW  - Agua
KW  - Abastecimiento rural
KW  - Alcantarillado rural
ER  -