| 其他書名 | Research Design, Complexity, and Opportunity |
| 出版 | U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1991 |
| URL | http://books.google.com.hk/books?id=OuUCjUBNVX0C&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |