CVC face mask

Chicago citation style
CVC face mask. 1978-12-04. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/nz808v794. (Accessed July 17, 2018.)
APA citation style
(1978-12-04) CVC face mask. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/nz808v794
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/nz808v794>.
Note: These citations are programmatically generated and may be incomplete.