Men wearing gas masks behind the bar at the Brass Door Tavern, 722 E. Pike Street in Seattle, Washington, January 11, 1978

Chicago citation style
Wallen, Don, Unidentified. Men wearing gas masks behind the bar at the Brass Door Tavern, 722 E. Pike Street in Seattle, Washington, January 11, 1978. 1978. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hupy/id/1110. (Accessed November 21, 2018.)
APA citation style
Wallen, Don, Unidentified, (1978) Men wearing gas masks behind the bar at the Brass Door Tavern, 722 E. Pike Street in Seattle, Washington, January 11, 1978. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hupy/id/1110
MLA citation style
Wallen, Don, Unidentified. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hupy/id/1110>.
Note: These citations are programmatically generated and may be incomplete.