| 其他書名 | A Study of Ecological Change, Distribution and Significance |
| 出版 | Federation of Ontario Naturalists, 1999 |
| 主題 | Nature / RegionalPolitical Science / Public Policy / Environmental Policy |
| ISBN | 18960590909781896059099 |
| URL | http://books.google.com.hk/books?id=YA4JAQAAMAAJ&hl=&source=gbs_api |