TY  - GEN
AU  - Ratnayake, Niranjanie
TI  - Instructional materials : Lecture notes:  principles of water and wastewater treatment  -  water Treatment
PY  - 2002///
CY  - Moratuwa
PB  - University of Moratuwa. Department of Civil Engineering
KW  - CIVIL ENGINEERING-Instructional materials
KW  - ENVIRONMENTAL ENGINEERING-Lecture notes
KW  - WATER SUPPLY
KW  - WATER TREATMENT
KW  - SEWAGE DISPOSAL
ER  -