The world cannot live half slave, half free

Chicago citation style
The world cannot live half slave, half free. 1917 or 1918. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p16002coll9/id/3137. (Accessed December 13, 2018.)
APA citation style
(1917 or 1918) The world cannot live half slave, half free. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p16002coll9/id/3137
MLA citation style
Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p16002coll9/id/3137>.
Note: These citations are programmatically generated and may be incomplete.