Comparative porphyry copper mining and processing costs - Alaska and Arizona.
Contributors: United States. Bureau of Mines
Series: Information circular - Bureau of Mines -- 8656; Information circular (United States. Bureau of Mines) -- 8656.
Publisher: U.S. Bureau of Mines
Published: 1974
Place of publication: [Washington]
Language: eng
Number of pages: 55
Subjects: Copper mines and mining -- Alaska -- Cost of operation.; Copper mines and mining -- Arizona -- Cost of operation.
Other titles: Porphyry copper mining.
Notes: Includes bibliography.