Wols.

MLA

Grohmann, Will, and Grety Wols. Wols. Bruxelles: Galerie Europe, 1959.

APA

Grohmann, W., & Wols, G. (1959). Wols. Bruxelles: Galerie Europe.

Chicago

Grohmann, Will, and Grety Wols. Wols. Bruxelles: Galerie Europe, 1959.