TY  - BOOK
AU  - Gray, N. F.
TI  - Water technology : : an introduction for environmental scientists and engineers 
SN  - 9781138046573 (pbk.)
U1  - 628.1 
PY  - 2017///
CY  - London
PB  - CRC Press
KW  - Water-supply engineering
N1  - Includes Index & bibliography
ER  -