APA (7th ed.) Citation

Plotinus 205-270 & Harder, R. (1962). Plotins Schriften. Plotins Schriften.

Chicago Style (17th ed.) Citation

Plotinus 205-270 and Richard Harder. "Plotins Schriften." Plotins Schriften 1962.

MLA (9th ed.) Citation

Plotinus 205-270 and Richard Harder. "Plotins Schriften." Plotins Schriften, 1962.

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