Washington, D.C. : United States Department of the Interior, Geological Survey, 1960.
Washington, D.C. : United States Department of the Interior, Geological Survey, 1960.
Canadian mineralogist, 2019-09, Vol.57 (5), p.767-769
Atlantic geology, 2021-01, Vol.57, p.130
The American mineralogist, 1999-05, Vol.84 (5-6), p.769-772