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General geology and phosphate deposits of Concepción del Oro District, Zacatecas, Mexico
Geologic investigations in the American Republics
Instituto Nacional para la Investigación de Recursos Minerales (Mexico)
1 online resource (v, 102 pages, 2 pages of plates) : illustrations, maps.
by Cleaves L. Rogers [and three others].
Title from title screen (viewed July 22, 2014).
"Prepared in cooperation with the Institute Nacional para la Investigación de Recursos Minerales under the auspices of the Technical Cooperation Administration of the Department of State and Foreign Operations Administration."
"Geologic investigations in the American Republics."
Includes bibliographical references (pages 94-97) and index.