姚志勇. (2002). 环境经济学: Environmental Economics. 中国发展出版社.
Lua i Stíl Chicago (17ú heag.)姚志勇. 环境经济学: Environmental Economics. 中国发展出版社, 2002.
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Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.