Cita APA (7th ed.)

Opp, A. (2009). Our Roots Grew Deep in the Russen Soil. Eigenverlag des Verfassers.

Cita Chicago (17th ed.)

Opp, Alfred. Our Roots Grew Deep in the Russen Soil. Redondo Beach, California: Eigenverlag des Verfassers, 2009.

Cita MLA (8th ed.)

Opp, Alfred. Our Roots Grew Deep in the Russen Soil. Eigenverlag des Verfassers, 2009.