Castel Sant' Angelo (Rome)

Chicago citation style
begun by Emperor Hadrian, Eugene Webb. Castel Sant' Angelo (Rome). begun in 123; became a fortress in the 10th century; connected to the Vatican in 1277. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/buildings/id/9422. (Accessed April 25, 2018.)
APA citation style
begun by Emperor Hadrian, Eugene Webb, (begun in 123; became a fortress in the 10th century; connected to the Vatican in 1277) Castel Sant' Angelo (Rome). Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/buildings/id/9422
MLA citation style
begun by Emperor Hadrian, Eugene Webb. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/buildings/id/9422>.
Note: These citations are programmatically generated and may be incomplete.