TY  - BOOK
AU  - Smethurst, George,
TI  - Basic water treatment: for application world-wide 
SN  - 0727713310
AV  - TD430 S54 1988
PY  - 1988///
CY  - London
PB  - T. Telford
KW  - Agua
KW  - Purificación
ER  -