Horace Pippin memoir of his experiences in World War I

Chicago citation style
Pippin, Horace, 1888-1946. Horace Pippin memoir of his experiences in World War I. ca. 1921. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3AAAADCD_item_7434&repo=DPLA. (Accessed December 13, 2018.)
APA citation style
Pippin, Horace, 1888-1946, (ca. 1921) Horace Pippin memoir of his experiences in World War I. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3AAAADCD_item_7434&repo=DPLA
MLA citation style
Pippin, Horace, 1888-1946. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3AAAADCD_item_7434&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.