Downtown Seattle skyline as seen from third level exterior ramp of the Kingdome in Seattle, Washington, March 23, 1976

Chicago citation style
Wallen, Don, Unidentified. Downtown Seattle skyline as seen from third level exterior ramp of the Kingdome in Seattle, Washington, March 23, 1976. 1976. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hupy/id/1051. (Accessed July 16, 2018.)
APA citation style
Wallen, Don, Unidentified, (1976) Downtown Seattle skyline as seen from third level exterior ramp of the Kingdome in Seattle, Washington, March 23, 1976. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hupy/id/1051
MLA citation style
Wallen, Don, Unidentified. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hupy/id/1051>.
Note: These citations are programmatically generated and may be incomplete.