APA (7th ed.) Citation

Armstrong, A. H. (1953). Plotinus (1st published.). George Allen & Unwin.

Chicago Style (17th ed.) Citation

Armstrong, Arthur Hilary. Plotinus. 1st published. London: George Allen & Unwin, 1953.

MLA (9th ed.) Citation

Armstrong, Arthur Hilary. Plotinus. 1st published. George Allen & Unwin, 1953.

Warning: These citations may not always be 100% accurate.