Fifteenth Amendment

Chicago citation style
Unidentified Artist. Fifteenth Amendment. 1870. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anpg_NPG.87.56&repo=DPLA. (Accessed August 17, 2018.)
APA citation style
Unidentified Artist, (1870) Fifteenth Amendment. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anpg_NPG.87.56&repo=DPLA
MLA citation style
Unidentified Artist. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anpg_NPG.87.56&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.