Castro, S. (1994). Proceedings of the IV meeting of the southern hemisphere on mineral technology, and the III latin-american congress on froth flotation. Universidad de Concepción.
Chicago-referens (17:e uppl.)Castro, S. Proceedings of the IV Meeting of the Southern Hemisphere on Mineral Technology, and the III Latin-american Congress on Froth Flotation. Concepción: Universidad de Concepción, 1994.
MLA-referens (9:e uppl.)Castro, S. Proceedings of the IV Meeting of the Southern Hemisphere on Mineral Technology, and the III Latin-american Congress on Froth Flotation. Universidad de Concepción, 1994.
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