Porfyrios, asi 234-asi 301
Isagoge / Porphyry the Phoenician ; translation, introduction and notes by Edward W. Warren. -- Toronto : Pontifical institute of mediaeval studies, 1975. -- 65 s. -- (Mediaeval sources in translation; 16). -- Rejstř. -- ISBN : 0888442653.
Warren, Edward W., 1929-. Warren, Edward W., 1929-
antická filozofie. logika. metafyzika
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