| 其他書名 | A Guide to Environmental Information in Canada |
| 出版 | Department of the Environment, 1978 |
| 主題 | Political Science / Public Affairs & AdministrationPolitical Science / Public Policy / Environmental PolicyReference / Directories |
| ISBN | 066201622X9780662016229 |
| URL | http://books.google.com.hk/books?id=0Ni3AAAAIAAJ&hl=&source=gbs_api |