| 其他書名 | Papers and Proceedings ; New Delhi, India, 24-28 November 1969. Environmental conservation education among populations of rural and woodland areas ; Fifth session: Commission on Education "Education Workshop." |
| 出版 | International Union for Conservation of Nature and Natural Resources, 1971 |
| URL | http://books.google.com.hk/books?id=VoZFSQAACAAJ&hl=&source=gbs_api |