| 其他書名 | A List of Published Research ; April 1, 1972 Through March 31, 1976 |
| 出版 | Rocky Mountain Forest and Range Experiment Station, Forest Service, U. S. Department of Agriculture, 1976 |
| URL | http://books.google.com.hk/books?id=OT3j0AEACAAJ&hl=&source=gbs_api |