| 其他書名 | First results from field testing of resistant planting stock. VI |
| 出版 | U.S. Department of Agriculture, Forest Service, Intermountain Forest & Range Experiment Station, 1973 |
| URL | http://books.google.com.hk/books?id=bUnF8ifjkt8C&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |