Geology of Pachuca and El Oro, Mexico

Chicago citation style
Winchell, Horace V. (Horace Vaughn), 1865-1923. Geology of Pachuca and El Oro, Mexico. 1921. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/102288732. (Accessed December 14, 2018.)
APA citation style
Winchell, Horace V. (Horace Vaughn), 1865-1923, (1921) Geology of Pachuca and El Oro, Mexico. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/102288732
MLA citation style
Winchell, Horace V. (Horace Vaughn), 1865-1923. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/102288732>.
Note: These citations are programmatically generated and may be incomplete.