TY  - BOOK
AU  - Diwan Paras
TI  - Environment protection
U1  - U:(G:55).2.N8, M7 
PY  - 1987///
CY  - Delhi
PB  - Deep and Deep India       
KW  - Geography
N1  - Bibliography P 553-555; Appendix: P 537-552
ER  -