| 其他書名 | General Framework, Contingent Valuation Methodology, and Welfare Analysis of Threatened Species |
| 出版 | Swedish University of Agricultural Sciences, 1997 |
| ISBN | 91576532919789157653291 |
| URL | http://books.google.com.hk/books?id=FsMsAQAAMAAJ&hl=&source=gbs_api |