Environmental management : physio-ecological facets
edited by R. K. Rai
- Jaipur Rawat publications 1992
- 2 vols. set
HB
Eng
8170331548
Environmental policy
Air-Pollution
Water-Pollution
301.31 / ENV
HB
Eng
8170331548
Environmental policy
Air-Pollution
Water-Pollution
301.31 / ENV