| 其他書名 | Division of Forestry, comprising report of Pennsylvania Forestry Commission, appointed by act of legislation, approved May 23, 1893 |
| 出版 | Clarence M. Busch, State printed of Pennsylvania, 1896 |
| URL | http://books.google.com.hk/books?id=Jk1DjwEACAAJ&hl=&source=gbs_api |