| 其他書名 | Proceedings of a Meeting Held at Purdue University, West Lafayette, IN, March 8-10, 1993 |
| 出版 | North Central Forest Experiment Station, Forest Service, U.S. Department of Agriculture, 1993 |
| URL | http://books.google.com.hk/books?id=eVriLcReHDoC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |