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USA | |
| Galbraith, F.W. & Brennan (1959), Mins. of AZ: 101. Galbraith, F. W. (1947) Minerals of Arizona (Second Edition, Revised) University of Arizona Bulletin 153. Arizona Bureau of Mines |
| Heinrich, E. William (1960), Some Rare-Earth Mineral Deposits in Mohave County, Arizona, Arizona Bureau of Mines Bulletin 167: 19. |
| Brown, T. J. (2010), Geology & Geochemistry of the Kingman Feldspar, Rare Metals and Wagon Bow Pegmatites. University of New Orleans Theses and Dissertations. Paper 1280. |