Placing span No. 13

Chicago citation style
Placing span No. 13. 1951-01-20. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/q811ks252. (Accessed June 24, 2018.)
APA citation style
(1951-01-20) Placing span No. 13. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/q811ks252
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/q811ks252>.
Note: These citations are programmatically generated and may be incomplete.