Cita APA (7th ed.)

Ungers, O. M. (2001). Wallraf-Richartz-Museum in Köln. Detail.

Cita Chicago (17th ed.)

Ungers, Oswald Mathias. "Wallraf-Richartz-Museum in Köln." Detail 2001.

Cita MLA (8th ed.)

Ungers, Oswald Mathias. "Wallraf-Richartz-Museum in Köln." Detail, 2001.

Atenció: Aquestes cites poden no estar 100% correctes.