Two youngsters riding "the Scrambler" at the Seattle Center Fun Forest in Seattle, Washington, May 18, 1970

Chicago citation style
Wallen, Don, Unidentified. Two youngsters riding "the Scrambler" at the Seattle Center Fun Forest in Seattle, Washington, May 18, 1970. 1970. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hupy/id/1171. (Accessed July 22, 2018.)
APA citation style
Wallen, Don, Unidentified, (1970) Two youngsters riding "the Scrambler" at the Seattle Center Fun Forest in Seattle, Washington, May 18, 1970. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hupy/id/1171
MLA citation style
Wallen, Don, Unidentified. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hupy/id/1171>.
Note: These citations are programmatically generated and may be incomplete.