Three types of logical theory

Chicago citation style
Cunningham, Holly Estil. Three types of logical theory. 1918. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001379335. (Accessed November 17, 2018.)
APA citation style
Cunningham, Holly Estil, (1918) Three types of logical theory. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001379335
MLA citation style
Cunningham, Holly Estil. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/001379335>.
Note: These citations are programmatically generated and may be incomplete.