Kaiser, G. (1984). Erfurt. Seemann.
Cita Chicago (17th ed.)Kaiser, Gerhard. Erfurt. Leipzig: Seemann, 1984.
Cita MLA (8th ed.)Kaiser, Gerhard. Erfurt. Seemann, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)