Certified proof

Chicago citation style
Certified proof. 1901-04-22. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1473475&repo=DPLA. (Accessed December 15, 2018.)
APA citation style
(1901-04-22) Certified proof. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1473475&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1473475&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.