Flower Observatory (built 1897) of the University of Pennsylvania, astronomical observatory and Director's residence, exteriors

Chicago citation style
Flower Observatory (built 1897) of the University of Pennsylvania, astronomical observatory and Director's residence, exteriors. 1910. Retrieved from the Digital Public Library of America, http://dla.library.upenn.edu/dla/archives/image.html?id=ARCHIVES_20090217009. (Accessed September 25, 2018.)
APA citation style
(1910) Flower Observatory (built 1897) of the University of Pennsylvania, astronomical observatory and Director's residence, exteriors. Retrieved from the Digital Public Library of America, http://dla.library.upenn.edu/dla/archives/image.html?id=ARCHIVES_20090217009
MLA citation style
Retrieved from the Digital Public Library of America <http://dla.library.upenn.edu/dla/archives/image.html?id=ARCHIVES_20090217009>.
Note: These citations are programmatically generated and may be incomplete.