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Bureau of Mines / Minerals yearbook 1990
(1990)
Lyday, Phyllis A.
Boron, pp. 201-[210]
Page 201
![[page image]](http://images.library.wisc.edu/EcoNatRes/0004/0001/M/0209.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




