Henning, E. Wappen 1971-1981.
Cita Chicago (17th ed.)Henning, Eckart. Wappen 1971-1981.
Cita MLA (8th ed.)Henning, Eckart. Wappen 1971-1981.
Atenció: Aquestes cites poden no estar 100% correctes.
Henning, E. Wappen 1971-1981.
Cita Chicago (17th ed.)Henning, Eckart. Wappen 1971-1981.
Cita MLA (8th ed.)Henning, Eckart. Wappen 1971-1981.