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Bureau of Mines / Minerals yearbook metals and minerals 1987
(1987)
Tanner, Arnold O.
Mining and quarrying trends in the metals and industrial minerals industries, pp. 5-40
Page 5
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As a work of the United States government, this material is in the public domain.| For information on re-use see: http://digital.library.wisc.edu/1711.dl/Copyright




