TY  - DATA
AU  - Davis,Mackenzie Leo and  Cornwell,David A
TI  - Introduction to Environmental Engineering: (Access Expired)
SN  - 9780070671171
U1  - 628 
PY  - 2011///
CY  - New Delhi : 
PB  - McGraw Hill
KW  - Environmental engineering
KW  - Sanitary engineering
UR  - https://www.expresslibrary.mheducation.com/product/intro-to-env-engg-sie
ER  -