| 其他書名 | 20 Great Ways Students and Teachers Can Help Save the Planet |
| 出版 | Park Place Publications, 2009 |
| 主題 | Nature / Environmental Conservation & ProtectionScience / Environmental Science |
| ISBN | 160702361X9781607023616 |
| URL | http://books.google.com.hk/books?id=VdFXtwAACAAJ&hl=&source=gbs_api |