APA (7th ed.) Citation

Köhnen, R. (1994). Keith Haring. Künstler.

Chicago Style (17th ed.) Citation

Köhnen, Ralph. "Keith Haring." Künstler 1994.

MLA (8th ed.) Citation

Köhnen, Ralph. "Keith Haring." Künstler, 1994.

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