Kosman, Aryeh The activity of being: an essay on Aristotle's Ontology / by Aryeh Kosman - Massachusetts : Harvard University Press, c2013. - 277 p. : 25 cm. Includes Index. ISBN: 9780674072862 Subjects--Personal Names: Aristotle Subjects--Topical Terms: GEDGeneral EducationOntology Dewey Class. No.: 111.092 / KOA