"Elfreth's Alley open house"

Chicago citation style
Hartman, Newton. "Elfreth's Alley open house". 1957-06-01. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/42730. (Accessed September 23, 2018.)
APA citation style
Hartman, Newton, (1957-06-01) "Elfreth's Alley open house". Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/42730
MLA citation style
Hartman, Newton. Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/42730>.
Note: These citations are programmatically generated and may be incomplete.