TY  - BOOK
AU  - Rich, Linvil Geve
TI  - Environmental Systems Engineering 
SN  - 070522502
U1  - 620.8 
PY  - 1973///
CY  - New York : 
PB  - McGraw-Hill, 
KW  - Environmental Engineering
KW  - Sanitary Engineering
N1  - NN
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/07-052250-2.pdf
ER  -