Robert Ryman.

MLA

Buren, Daniel, et al. Robert Ryman. Paris: Beaux Arts Magazine, 1999.

APA

Buren, D., Pacquement, A., Raussmüller, U., & Sauer, C. (1999). Robert Ryman. Paris: Beaux Arts Magazine.

Chicago

Buren, Daniel, Alfred Pacquement, Urs Raussmüller, and Christel Sauer. Robert Ryman. Paris: Beaux Arts Magazine, 1999.