TY  - BOOK
AU  - Edton,  Andrew D
TI  - Standard methods for the examination of water and wastewater 
AV  - DASF QD142.A5 
PY  - 2005///
CY  - London. 
PB  -  : Oxford University Press.
KW  -  Water analysis
KW  - Sewage analysis
ER  -