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- 41113861020
Author(s): Rodríguez Campos, O. Title: *Informe de las condiciones sanitarias del mineral de Las Esperanzas, Coahuila. Subject(s): Mine Conditions, and health survey Pagination: 69p. Place of Publication: Méx. Date of Publication: 1949 Size: 22cm. Language: Spanish Type of Resource: Dissertation Series/Volume/Page: Series 4/Volume 11/Page 1386