(1963). Gemeindestatistik Schleswig-Holstein 1960/61.
Cita Chicago (17th ed.)Gemeindestatistik Schleswig-Holstein 1960/61. Kiel, 1963.
Cita MLA (8th ed.)Gemeindestatistik Schleswig-Holstein 1960/61. 1963.
Atenció: Aquestes cites poden no estar 100% correctes.