Pennsylvania Avenue Exchange Block (circa 1875)

Chicago citation style
Unknown. Pennsylvania Avenue Exchange Block (circa 1875). Ca 1875. Retrieved from the Digital Public Library of America, http://digitalcollections.powerlibrary.org/cdm/ref/collection/pwala-hstph/id/171. (Accessed December 10, 2018.)
APA citation style
Unknown, (Ca 1875) Pennsylvania Avenue Exchange Block (circa 1875). Retrieved from the Digital Public Library of America, http://digitalcollections.powerlibrary.org/cdm/ref/collection/pwala-hstph/id/171
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://digitalcollections.powerlibrary.org/cdm/ref/collection/pwala-hstph/id/171>.
Note: These citations are programmatically generated and may be incomplete.