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Bureau of Mines / Minerals yearbook 1991
(1991)
Ober, Joyce A.
Sulfur, pp. 1541-1574
Page 1541
![[page image]](http://images.library.wisc.edu/EcoNatRes/0003/0001/M/1549.gif)
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




