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Bolivia | |
| Ahlfeld, F. & Muñoz-Reyes, J. (1955) Las Especies Minerales de Bolivia |
| USGS Bulletin # 1975, p.131-136, 246. Mineralogical Magazine 1998 62 : 421-429. |
| Ahlfeld, F. (1955): Las Especies Minerales de Bolivia. |
| Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz) |
| Moricz, F., Walder, I. F., & Madai, F. (2009). Geochemical and mineralogical characterization of waste material from Itos Sn-Ag deposit, Bolivia. Proceeding of securing the future and 8th ICARD. Skellefteå, Sweden, 525-534. |
| Pastor, M., Pastor, A., Torró, L., Martínez, Á., Artiaga, D., Torres, B., ... & Alfonso, P. (2015) The San José-Itos Mines, Oruro, Bolivia: Structure and Ag-Sn Mineralization. in Mineral Resources in a Sustainable World • 13th SGA Biennial Meeting 2015. Proceedings, Volume 1 pp 327-330 Wilson, Wendell E. (2001) Notes From the Editors - Old Yuma mine. The Mineralogical Record, 32 (6) 426-501 |
| Alfredo Petrov and Jaroslav Hyrsl specimens (PXRD by Jaroslav Hyrsl) |