APA (7th ed.) Citation

Heller, R., & Lehmbruck, W. (1973). The art of Wilhelm Lehmbruck. Macmillan.

Chicago Style (17th ed.) Citation

Heller, Reinhold, and Wilhelm Lehmbruck. The Art of Wilhelm Lehmbruck. N.Y.: Macmillan, 1973.

MLA (8th ed.) Citation

Heller, Reinhold, and Wilhelm Lehmbruck. The Art of Wilhelm Lehmbruck. Macmillan, 1973.

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