Armstrong Arthur Hilary. Plotinus / by A. H. Armstrong. - London : George Allen & Unwin, [1953] - 173 p. - No. 10 . - No. 10 . Nat. Bib. No.: 53011727 Nat. Bib. Agency Control No.: 1024762 ChTaNC Subjects--Topical Terms: 亞歷山大里亞學