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Bureau of Mines / Minerals yearbook 1989
Year 1989, Volume 2 (1989)
Osmint, Jeffrey B.; Smith, Stephen D.
Survey methods and statistical summary of nonfuel minerals, pp. 1-39 ff.
Page 6
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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




