TY  - BOOK
AU  - Mara, D. D.
TI  - Seminar of sewage treatment: department of civil engineering
AV  - EAF QTO TD745.N3 
PY  - 1973///
CY  - Nairobi
PB  - : University of Nairobi
KW  - Sewage
KW  - Purification
KW  - Industries
ER  -