| 其他書名 | January 14-17, 1997, Loews Annapolis Hotel, Annapolis, Maryland |
| 出版 | U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1997 |
| URL | http://books.google.com.hk/books?id=xExJQR56fdUC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |