APA (7th ed.) Citation

Ruhrberg, K., & Gilles, W. (1987). Werner Gilles - Ölbilder, Aquarelle, Graphik: [Text: Karl Ruhrberg].

Chicago Style (17th ed.) Citation

Ruhrberg, Karl, and Werner Gilles. Werner Gilles - Ölbilder, Aquarelle, Graphik: [Text: Karl Ruhrberg]. Düsseldorf, 1987.

MLA (8th ed.) Citation

Ruhrberg, Karl, and Werner Gilles. Werner Gilles - Ölbilder, Aquarelle, Graphik: [Text: Karl Ruhrberg]. 1987.

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