"Your War Savings Pledge. Our boys make good their pledge. Are you keeping yours? W.S.S. War Savings Stamps issued by the United States Government."

Chicago citation style
U.S. Food Administration. Educational Division. Advertising Section. (3/1918 - 1/1919). "Your War Savings Pledge. Our boys make good their pledge. Are you keeping yours? W.S.S. War Savings Stamps issued by the United States Government.". 1917-01-01/1919-12-31. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/512619. (Accessed October 15, 2018.)
APA citation style
U.S. Food Administration. Educational Division. Advertising Section. (3/1918 - 1/1919), (1917-01-01/1919-12-31) "Your War Savings Pledge. Our boys make good their pledge. Are you keeping yours? W.S.S. War Savings Stamps issued by the United States Government.". Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/512619
MLA citation style
U.S. Food Administration. Educational Division. Advertising Section. (3/1918 - 1/1919). Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/512619>.
Note: These citations are programmatically generated and may be incomplete.