APA (7th ed.) Citation

Bismark, K. v., & Dirks, W. (1969). Nuevas fronteras. Sígueme.

Chicago Style (17th ed.) Citation

Bismark, Klaus von, and Walter Dirks. Nuevas Fronteras. Salamanca: Sígueme, 1969.

MLA (9th ed.) Citation

Bismark, Klaus von, and Walter Dirks. Nuevas Fronteras. Sígueme, 1969.

Warning: These citations may not always be 100% accurate.