CEMEL, clothing, cold weather, headgear, parka w/helmet and face mask

Chicago citation style
CEMEL, clothing, cold weather, headgear, parka w/helmet and face mask. 1971-07-07. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/nz8083194. (Accessed July 18, 2018.)
APA citation style
(1971-07-07) CEMEL, clothing, cold weather, headgear, parka w/helmet and face mask. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/nz8083194
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/nz8083194>.
Note: These citations are programmatically generated and may be incomplete.