TY  - BOOK
AU  - Sharma, C Monika
AU  - Nayak, Shankar
TI  - Environmental studies: U.G.C. syllabus 
U1  - 333.7097 
PY  - 2007///
CY  - Tiruchirappalli
PB  - Periyar E.V.R. College Alumni Association
KW  - Environment protection
KW  - Environmental Engineering
ER  -