APA (7th ed.) Citation

Plotinus 205-270 & Harder, R. (1967). Plotins Schriften. Plotins Schriften.

Chicago Style (17th ed.) Citation

Plotinus 205-270 and Richard Harder. "Plotins Schriften." Plotins Schriften 1967.

MLA (8th ed.) Citation

Plotinus 205-270 and Richard Harder. "Plotins Schriften." Plotins Schriften, 1967.

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