Improved PASGT helmet

Chicago citation style
Improved PASGT helmet. 1990-11-29. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/x920gt12x. (Accessed July 19, 2018.)
APA citation style
(1990-11-29) Improved PASGT helmet. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/x920gt12x
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/x920gt12x>.
Note: These citations are programmatically generated and may be incomplete.