Helen Keller writing note about faith

Chicago citation style
Helen Keller writing note about faith. 1930. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/q237j2212. (Accessed July 18, 2018.)
APA citation style
(1930) Helen Keller writing note about faith. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/q237j2212
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/q237j2212>.
Note: These citations are programmatically generated and may be incomplete.