APA (7th ed.) Citation

Lehmbruck, W., & Heller, R. (1973). Wilhelm Lehmbruck.

Chicago Style (17th ed.) Citation

Lehmbruck, Wilhelm, and Reinhold Heller. Wilhelm Lehmbruck. Berlin, 1973.

MLA (8th ed.) Citation

Lehmbruck, Wilhelm, and Reinhold Heller. Wilhelm Lehmbruck. 1973.

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