Al Youngman (left) holding a fish and Joe Woolfe holding a bottle of milk and a fish, n.d

Chicago citation style
Unidentified. Al Youngman (left) holding a fish and Joe Woolfe holding a bottle of milk and a fish, n.d. n.d. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/jhp/id/2509. (Accessed June 18, 2018.)
APA citation style
Unidentified, (n.d) Al Youngman (left) holding a fish and Joe Woolfe holding a bottle of milk and a fish, n.d. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/jhp/id/2509
MLA citation style
Unidentified. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/jhp/id/2509>.
Note: These citations are programmatically generated and may be incomplete.