Schmidt, W. (1938). Kurmark Grenzland (6. - 10. Tsd.). Neumann.
Cita Chicago (17th ed.)Schmidt, Willy. Kurmark Grenzland. 6. - 10. Tsd. Neudamm ; Berlin: Neumann, 1938.
Cita MLA (8th ed.)Schmidt, Willy. Kurmark Grenzland. 6. - 10. Tsd. Neumann, 1938.
Atenció: Aquestes cites poden no estar 100% correctes.