APA (7th ed.) Citation

Wallraf-Richartz-Museum. (1993). Le Wallraf-Richartz Museum de Cologne (1. publ.). Beck u.a.

Chicago Style (17th ed.) Citation

Wallraf-Richartz-Museum. Le Wallraf-Richartz Museum De Cologne. 1. publ. Munich: Beck u.a, 1993.

MLA (9th ed.) Citation

Wallraf-Richartz-Museum. Le Wallraf-Richartz Museum De Cologne. 1. publ. Beck u.a, 1993.