Petrick, AlfredGarcia Flores, Leopoldo2021-02-232022-02-032021-02-232022-02-031977https://hdl.handle.net/11124/176013Includes bibliographical references.masters thesesengCopyright of the original work is retained by the author.Gold mines and mining -- Mexico -- Hidalgo (State)Silver mines and mining-- Mexico -- Hidalgo (State)Text