Key

Chicago citation style
Key. 1884-. Retrieved from the Digital Public Library of America, http://digitalcollections.nypl.org/items/916a9906-eec7-f8ab-e040-e00a180606c5. (Accessed December 15, 2018.)
APA citation style
(1884-) Key. Retrieved from the Digital Public Library of America, http://digitalcollections.nypl.org/items/916a9906-eec7-f8ab-e040-e00a180606c5
MLA citation style
Retrieved from the Digital Public Library of America <http://digitalcollections.nypl.org/items/916a9906-eec7-f8ab-e040-e00a180606c5>.
Note: These citations are programmatically generated and may be incomplete.