IWW Labor Day Picnic, Oakland, California, 1939

Chicago citation style
IWW Labor Day Picnic, Oakland, California, 1939. 1939. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/social/id/2928. (Accessed July 21, 2018.)
APA citation style
(1939) IWW Labor Day Picnic, Oakland, California, 1939. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/social/id/2928
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/social/id/2928>.
Note: These citations are programmatically generated and may be incomplete.