Cooling device

Chicago citation style
Cooling device. 1980. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/zk51xm50c. (Accessed June 23, 2018.)
APA citation style
(1980) Cooling device. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/zk51xm50c
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/zk51xm50c>.
Note: These citations are programmatically generated and may be incomplete.