Unidentified man and woman

Chicago citation style
Unidentified man and woman. ca. 1889. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3AAAADCD_item_7120&repo=DPLA. (Accessed December 13, 2018.)
APA citation style
(ca. 1889) Unidentified man and woman. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3AAAADCD_item_7120&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3AAAADCD_item_7120&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.