I 6 cm

Chicago citation style
I 6 cm. 1932-1972. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/v405tb30r. (Accessed July 20, 2018.)
APA citation style
(1932-1972) I 6 cm. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/v405tb30r
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/v405tb30r>.
Note: These citations are programmatically generated and may be incomplete.