Cita APA (7a ed.)

Gradmann, E. (1946). Drawings by Spanish masters. Holbein.

Cita Chicago Style (17a ed.)

Gradmann, Erwin. Drawings by Spanish Masters. Basle: Holbein, 1946.

Cita MLA (9a ed.)

Gradmann, Erwin. Drawings by Spanish Masters. Holbein, 1946.