TY  - BOOK
AU  - Graham,N.J.D.
TI  - Slow sand filtration: recent developments in water treatment technology 
SN  - 0470213744 (Halsted Press)
AV  - TD445 .S58 1988
U1  - 628.1/64 19
PY  - 1988///
CY  - Chichester, New York
PB  - Ellis Horwood, Halsted Press
KW  - Water
KW  - Purification
KW  - Slow sand filtration
KW  - Sewage
KW  - Filtration
N1  - Includes bibliographies and index
ER  -