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Environmentally sound management of Lake Erhai and the Xi'er River Basin / China International Center for Economic and Technical Exchanges [and] United Nations Environment Programme, Division of Technology, Industry and Economics, International Environmental Technology Centre ; [prepared in collaboration with ... Dali Bai Nationality Autonomous Prefecture (DBNAP-BELA) and Environmental Science and Research Center, Peking University].
- 333.910931
- United Nations Environment Programme, International Environmental Technology Centre,
- 2000.
- Osaka, Japan :