Preference surveys

Chicago citation style
Preference surveys. 1972-01-13. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/nz808444p. (Accessed June 22, 2018.)
APA citation style
(1972-01-13) Preference surveys. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/nz808444p
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/nz808444p>.
Note: These citations are programmatically generated and may be incomplete.