APA (7th ed.) Citation

Köpf, U. (1989). Bonaventura. Wörterbuch der Mystik, 68-69.

Chicago Style (17th ed.) Citation

Köpf, Ulrich. "Bonaventura." Wörterbuch Der Mystik 1989: 68-69.

MLA (9th ed.) Citation

Köpf, Ulrich. "Bonaventura." Wörterbuch Der Mystik, 1989, pp. 68-69.

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