TY  - BOOK
AU  - Trivedi, P. R.
AU  -  Sudarshan, K. N. Sharma, Piare Lal
TI  - Natural environment and constitution of India  
SN  - 8170246407
PY  - 1994///
CY  - New Delhi
PB  - Ashish Publishing House
KW  - Environment
ER  -