Conquering an old enemy

Chicago citation style
Irwin, Will, 1873-1948. Conquering an old enemy. [c1920]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/009702844. (Accessed November 19, 2018.)
APA citation style
Irwin, Will, 1873-1948, ([c1920]) Conquering an old enemy. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/009702844
MLA citation style
Irwin, Will, 1873-1948. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/009702844>.
Note: These citations are programmatically generated and may be incomplete.