Environmentally sound management of lake erhai and the xi'er river basin /
Environmentally sound management of lake erhai and the xi'er river basin /
UNEP
- China : UNEP, c2000.
- 257 p. : 30 cm.
Environmental protection
Sound management environment
TD169 / .E6 2000
363.6
Environmental protection
Sound management environment
TD169 / .E6 2000
363.6