Penn Mutual Life Insurance building illustration

Chicago citation style
Unknown. Penn Mutual Life Insurance building illustration. 1973-11-21. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/2634. (Accessed September 20, 2018.)
APA citation style
Unknown, (1973-11-21) Penn Mutual Life Insurance building illustration. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/2634
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/2634>.
Note: These citations are programmatically generated and may be incomplete.