TY  - BOOK
AU  - Meenakshi,P.
TI  - Elements of environmental science and engineering
SN  - 9788120345232
U1  - 628 22
PY  - 2012///
CY  - New Delhi 
PB  - PHI Learning
KW  - Drawing
KW  - Engineering drawing
N1  - Include index
ER  -