Backpack frame

Chicago citation style
Backpack frame. 1980. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/nz809608d. (Accessed June 23, 2018.)
APA citation style
(1980) Backpack frame. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/nz809608d
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/nz809608d>.
Note: These citations are programmatically generated and may be incomplete.