Porter, Dot2023-05-232014-08-012014-07-012014-08-01https://repository.upenn.edu/handle/20.500.14332/46878http://hdl.library.upenn.edu/1017/d/medren/4956024youtubeHistoryMedieval StudiesOther Arts and HumanitiesPenn Library's LJS 97 - Eis ta harmonica Ptolemaiou (Video Orientation)Media