Smith's butterfat computer

Chicago citation style
Smith, J. F. (J. Frank), 1866-. Smith's butterfat computer. c1919. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/009602502. (Accessed October 15, 2018.)
APA citation style
Smith, J. F. (J. Frank), 1866-, (c1919) Smith's butterfat computer. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/009602502
MLA citation style
Smith, J. F. (J. Frank), 1866-. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/009602502>.
Note: These citations are programmatically generated and may be incomplete.