TY  - BOOK
AU  - Sapru R K Ed.
AU  -  Bhardwaj Shyama Ed.
TI  - New environmental age
T2  - New World Environment Series
U1  - U:(G:55).2.N8, N0 
PY  - 1990///
CY  -  New Delhi 
PB  - Ashish India        
KW  - Geography- Environment
ER  -