Cooling system

Chicago citation style
Cooling system. 1979. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/nz808z23w. (Accessed June 25, 2018.)
APA citation style
(1979) Cooling system. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/nz808z23w
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/nz808z23w>.
Note: These citations are programmatically generated and may be incomplete.