Page 20

Chicago citation style
Page 20. Retrieved from the Digital Public Library of America, http://digitallibrary.usc.edu/cdm/ref/collection/p15799coll14/id/177056. (Accessed December 17, 2018.)
APA citation style
Page 20. Retrieved from the Digital Public Library of America, http://digitallibrary.usc.edu/cdm/ref/collection/p15799coll14/id/177056
MLA citation style
Retrieved from the Digital Public Library of America <http://digitallibrary.usc.edu/cdm/ref/collection/p15799coll14/id/177056>.
Note: These citations are programmatically generated and may be incomplete.