Machinery

Chicago citation style
Machinery. 1972-07-25. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4f16cv86m. (Accessed July 21, 2018.)
APA citation style
(1972-07-25) Machinery. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4f16cv86m
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/4f16cv86m>.
Note: These citations are programmatically generated and may be incomplete.