The Crater, Summit of Popocatapetl

Chicago citation style
The Crater, Summit of Popocatapetl. Retrieved from the Digital Public Library of America, http://ark.cdlib.org/ark:/13030/tf800012nr. (Accessed December 6, 2019.)
APA citation style
The Crater, Summit of Popocatapetl. Retrieved from the Digital Public Library of America, http://ark.cdlib.org/ark:/13030/tf800012nr
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.cdlib.org/ark:/13030/tf800012nr>.
Note: These citations are programmatically generated and may be incomplete.