Hand-painted protest signs at rally opposing U.S. involvement in Vietnam, San Francisco, California, April 24, 1971

Chicago citation style
Wallen, Don, Unidentified. Hand-painted protest signs at rally opposing U.S. involvement in Vietnam, San Francisco, California, April 24, 1971. 1971. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hupy/id/592. (Accessed June 22, 2018.)
APA citation style
Wallen, Don, Unidentified, (1971) Hand-painted protest signs at rally opposing U.S. involvement in Vietnam, San Francisco, California, April 24, 1971. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hupy/id/592
MLA citation style
Wallen, Don, Unidentified. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hupy/id/592>.
Note: These citations are programmatically generated and may be incomplete.