| 其他書名 | California, Calaveras County, Mother Lode District (South) : Mines of the Southern Mother Lode Region. Calaveras County |
| 出版 | U.S. Government Printing Office, 1938 |
| URL | http://books.google.com.hk/books?id=Qc1cS-7sBIUC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |