Kupfer, C. (1977). Naumburg. Brockhaus.
Cita Chicago (17th ed.)Kupfer, Christian. Naumburg. Leipzig: Brockhaus, 1977.
Cita MLA (8th ed.)Kupfer, Christian. Naumburg. Brockhaus, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)