Peters, N. R. (1989). The Graue Familie: A history of the Graue family of the Kingdom of Hannover. Gateway [in Komm.].
Cita Chicago (17th ed.)Peters, Norman Ralph. The Graue Familie: A History of the Graue Family of the Kingdom of Hannover. Baltimore: Gateway [in Komm.], 1989.
Cita MLA (8th ed.)Peters, Norman Ralph. The Graue Familie: A History of the Graue Family of the Kingdom of Hannover. Gateway [in Komm.], 1989.
Atenció: Aquestes cites poden no estar 100% correctes.