USBM IC 6186
Title:Mining methods and costs, Alaska-Juneau Gold Mining Co., Juneau, Alaska
Publisher:U.S. Bureau of Mines
Ordering Info:This publication is out of print. Reproductions may be available. Download below or please see our publication sales page for more information.
Bradley, P.R., 1929, Mining methods and costs, Alaska-Juneau Gold Mining Co., Juneau, Alaska: U.S. Bureau of Mines Information Circular 6186, 18 p.
- ic6186.pdf (9.0 M)