CEMEL, clothing, cold-weather, face mask, mouth piece closed

Chicago citation style
CEMEL, clothing, cold-weather, face mask, mouth piece closed. 1971-04-22. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/zk51wh26h. (Accessed June 18, 2018.)
APA citation style
(1971-04-22) CEMEL, clothing, cold-weather, face mask, mouth piece closed. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/zk51wh26h
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/zk51wh26h>.
Note: These citations are programmatically generated and may be incomplete.