Military map of the United States of America showing location of all forces in training

Chicago citation style
Poole Brothers. Military map of the United States of America showing location of all forces in training. 1917. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/7h14b485s. (Accessed October 22, 2018.)
APA citation style
Poole Brothers, (1917) Military map of the United States of America showing location of all forces in training. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/7h14b485s
MLA citation style
Poole Brothers. Retrieved from the Digital Public Library of America <https://ark.digitalcommonwealth.org/ark:/50959/7h14b485s>.
Note: These citations are programmatically generated and may be incomplete.