Fritsch, E. (1981). Osterzgebirge. Brockhaus.
Cita Chicago (17th ed.)Fritsch, Erich. Osterzgebirge. Leipzig: Brockhaus, 1981.
Cita MLA (8th ed.)Fritsch, Erich. Osterzgebirge. Brockhaus, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)