Abraham Lincoln

Chicago citation style
John Sartain, 24 Oct 1808 - 25 Oct 1897. Abraham Lincoln. c. 1864-1865. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anpg_NPG.79.73&repo=DPLA. (Accessed December 10, 2018.)
APA citation style
John Sartain, 24 Oct 1808 - 25 Oct 1897, (c. 1864-1865) Abraham Lincoln. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anpg_NPG.79.73&repo=DPLA
MLA citation style
John Sartain, 24 Oct 1808 - 25 Oct 1897. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anpg_NPG.79.73&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.