Context

Context of Geology and manganese deposits of the Lucifer district northwest of Santa Rosalie, Baja California, Mexico, by Ivan F. Wilson and Mario Veytia ; prepared in cooperation with the Universidad Nacional Autonoma de Mexico, Instituto de Geologia and Secretaria de la Economia Nacional Direccion General de Minas y Petroleo under the auspices of the Interdepartmental Committee on Scientific and Cultural Cooperation, Department of State
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