Expressionism : : From artistic commitment to the beginning of a new era.

MLA

Gerhardus, Maly, Dietfried Gerhardus, and Stephen Crawshaw. Expressionism : From Artistic Commitment to the Beginning of a New Era. Oxford: Phaidon, 1979.

APA

Gerhardus, M., Gerhardus, D., & Crawshaw, S. (1979). Expressionism : From artistic commitment to the beginning of a new era. Oxford: Phaidon.

Chicago

Gerhardus, Maly, Dietfried Gerhardus, and Stephen Crawshaw. Expressionism: From Artistic Commitment to the Beginning of a New Era. Oxford: Phaidon, 1979.