TY  - BOOK
AU  - Rao, P. Venugopala 
TI  - Principles of environmental science and engineering 
SN  - 9788120328938
U1  - 628.01 
PY  - 2016///
CY  - New Delhi
PB  - PHI Learnig
KW  - Civil engg
KW  - Environmental engineering
KW  - Ecology
KW  - Pollution Control
N1  - Includes bibliographical references and index
ER  -