APA (7th ed.) Citation

Lehmbruck, W., & Heller, R. (1972). The art of Wilhelm Lehmbruck. National Gallery of Art.

Chicago Style (17th ed.) Citation

Lehmbruck, Wilhelm, and Reinhold Heller. The Art of Wilhelm Lehmbruck. Washington: National Gallery of Art, 1972.

MLA (8th ed.) Citation

Lehmbruck, Wilhelm, and Reinhold Heller. The Art of Wilhelm Lehmbruck. National Gallery of Art, 1972.

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