APA (7th ed.) Citation

Nolde, E., & Ring, C. (2014). Emil Nolde: Blumen = flowers. DuMont.

Chicago Style (17th ed.) Citation

Nolde, Emil, and Christian Ring. Emil Nolde: Blumen = Flowers. [Köln]: DuMont, 2014.

MLA (9th ed.) Citation

Nolde, Emil, and Christian Ring. Emil Nolde: Blumen = Flowers. DuMont, 2014.

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