| 其他書名 | Its Breakdown and Decay at Two Forests in Northern California |
| 出版 | Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, 1972 |
| URL | http://books.google.com.hk/books?id=xxBBsqzBVKMC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |