TY  - BOOK
AU  - Maskew Fair, Gordon  .
AU  - Alexander Okun,Daniel  .
AU  - Charles Geyer,John  .
TI  - Water and waste water engineering, Vol 2 / 
U1  - 628.11 
PY  - 1968///
CY  - London : 
PB  - John Wiley & Sons , 
ER  -