Black Expo '71 sign hung up

Chicago citation style
Black Expo '71 sign hung up. 1971-07-14. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/10794. (Accessed December 14, 2018.)
APA citation style
(1971-07-14) Black Expo '71 sign hung up. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/10794
MLA citation style
Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/10794>.
Note: These citations are programmatically generated and may be incomplete.