Yellowstone National Park

Chicago citation style
Yellowstone National Park. c1921. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/100011234. (Accessed October 16, 2018.)
APA citation style
(c1921) Yellowstone National Park. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/100011234
MLA citation style
Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/100011234>.
Note: These citations are programmatically generated and may be incomplete.