Hagn, H. (2009). Automobilwirtschaft in Thüringen. TLS.
Cita Chicago (17th ed.)Hagn, Harald. Automobilwirtschaft in Thüringen. Erfurt: TLS, 2009.
Cita MLA (8th ed.)Hagn, Harald. Automobilwirtschaft in Thüringen. TLS, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.