APA (7th ed.) Citation

Piene, O. (2016). Otto Piene: Black melt & light rays. Galerie Ludorff (Düsseldorf).

Chicago Style (17th ed.) Citation

Piene, Otto. Otto Piene: Black Melt & Light Rays. Düsseldorf: Galerie Ludorff (Düsseldorf), 2016.

MLA (8th ed.) Citation

Piene, Otto. Otto Piene: Black Melt & Light Rays. Galerie Ludorff (Düsseldorf), 2016.

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