TY  - BOOK
AU  - Zwick, David R.,
AU  - Gravitz, Michael,
AU  - Aoki, Saphie Ann M.,
ED  - Environmental Policy Institute an Clean Water Fund (Washington, D.C.)
TI  - Shopping for sewage treatment: How to get the best bargain for your community or home 
AV  - TD430 S45
PY  - 1980///
CY  - Washington
PB  - Environmental policy institute and clean water fund
KW  - Agua
KW  - Purificación
ER  -