Questions on the principles of economics

Chicago citation style
Day, Edmund Ezra. [from old catalog]. Questions on the principles of economics. 1915. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/009602596. (Accessed October 18, 2018.)
APA citation style
Day, Edmund Ezra. [from old catalog], (1915) Questions on the principles of economics. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/009602596
MLA citation style
Day, Edmund Ezra. [from old catalog]. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/009602596>.
Note: These citations are programmatically generated and may be incomplete.