TY  - BOOK
AU  - Reed, Sherwood C.
AU  - Crites, Ronald W.
AU  - Middlebrooks, E. Joe
TI  - Natural Systems for Waste Management and Treatment 
SN  - 0070515212
U1  - 628.4 
PY  - 1988///
CY  - New York : 
PB  - McGraw-Hill, 
KW  - Sewage Purification
KW  - Sewage Sludge Management
N1  - YY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-07-051521-2.pdf
ER  -