Back him up poster, United States, World War I

Chicago citation style
Back him up poster, United States, World War I. 1918. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/posters/id/39. (Accessed September 20, 2018.)
APA citation style
(1918) Back him up poster, United States, World War I. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/posters/id/39
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/posters/id/39>.
Note: These citations are programmatically generated and may be incomplete.