TY  - BOOK
AU  - Rich, Linvil Gene
TI  - LOW-MAINTENANCE MECHANICALLY SIMPLE WASTE-WATER TREATMENT SYSTEMS
U1  - 628.3 
PY  - 1980///
CY  - New York
PB  - Mcgraw-Hill
KW  - Sewage -- Purification
KW  - Water -- Waste
ER  -