Cita APA (7th ed.)

Opp, A. (2007). Pawns on the World Stage. Eigenverlag des Verfassers.

Cita Chicago (17th ed.)

Opp, Alfred. Pawns on the World Stage. Redondo Beach, California: Eigenverlag des Verfassers, 2007.

Cita MLA (8th ed.)

Opp, Alfred. Pawns on the World Stage. Eigenverlag des Verfassers, 2007.