Cita APA (7a ed.)

Vallotton, H., & Sastre, L. (1966). Metternich. Cid.

Cita Chicago Style (17a ed.)

Vallotton, Henry, y Luis Sastre. Metternich. Madrid: Cid, 1966.

Cita MLA (9a ed.)

Vallotton, Henry, y Luis Sastre. Metternich. Cid, 1966.