| 其他書名 | A Comprehensive Guide to Environmental Organizations in the United States and Canada |
| 出版 | Center for California Public Affairs, 1975 |
| 主題 | Nature / Environmental Conservation & Protection |
| ISBN | 08379260179780837926018 |
| URL | http://books.google.com.hk/books?id=xXhXAAAAMAAJ&hl=&source=gbs_api |