Cobalt source material configurations

Chicago citation style
Cobalt source material configurations. 1976-05-10-1976-05-14. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/9880wc39n. (Accessed June 21, 2018.)
APA citation style
(1976-05-10-1976-05-14) Cobalt source material configurations. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/9880wc39n
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/9880wc39n>.
Note: These citations are programmatically generated and may be incomplete.