TY  - BOOK
AU  - Gray,N.F.
TI  - Water technology: an introduction for scientists and engineers 
SN  - 0340676450 (pbk.)
AV  - TD365 .G73 1999
U1  - 628.16 GRA 21
PY  - 1999///
CY  - London, New York
PB  - Arnold, Wiley
KW  - Water quality management
KW  - Sewage disposal
KW  - Freshwater biology
KW  - Water quality biological assessment
N1  - H.B; Includes bibliographical references and index
UR  - http://www.loc.gov/catdir/description/els031/00269862.html
UR  - http://www.loc.gov/catdir/toc/els031/00269862.html
ER  -