APA (7th ed.) Citation

Plotinus, Henry, P., & Schwyzer, H. (1964). Plotini Opera. E Typographeo Clarendoniano.

Chicago Style (17th ed.) Citation

Plotinus, Paul Henry, and Hans-Rudolf Schwyzer. Plotini Opera. Oxonii: E Typographeo Clarendoniano, 1964.

MLA (9th ed.) Citation

Plotinus, et al. Plotini Opera. E Typographeo Clarendoniano, 1964.