Wirth, W. (1967). Naumburg. Brockhaus.
Cita Chicago (17th ed.)Wirth, Walter. Naumburg. Leipzig: Brockhaus, 1967.
Cita MLA (8th ed.)Wirth, Walter. Naumburg. Brockhaus, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.
Wirth, W. (1967). Naumburg. Brockhaus.
Cita Chicago (17th ed.)Wirth, Walter. Naumburg. Leipzig: Brockhaus, 1967.
Cita MLA (8th ed.)Wirth, Walter. Naumburg. Brockhaus, 1967.