| 其他書名 | Canadian Issues in Environmental Conservation |
| 出版 | Duxbury Press, 1973 |
| 主題 | Nature / Environmental Conservation & ProtectionNature / Natural ResourcesScience / Environmental ScienceTravel / Canada / General |
| ISBN | 08787204219780878720422 |
| URL | http://books.google.com.hk/books?id=xoUvAAAAYAAJ&hl=&source=gbs_api |