| 其他書名 | Metallurgical Division. Ore-dressing studies of manganese ores : concentration of manganese-bearing ore from the Dobbins Mine, Cartersville, Ga |
| 出版 | U.S. Department of the Interior, Bureau of Mines, 1942 |
| URL | http://books.google.com.hk/books?id=jtCh8FD6jjkC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |