| 其他書名 | A Paper Read Before the Ninth State Sanitary Convention of Pennsylvania at Williamsport, May 1896 |
| 出版 | Clarence M. Busch, State Printer of Pennsylvania, 1897 |
| URL | http://books.google.com.hk/books?id=1HVBAQAAMAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |