Cohn, W. I. (1985). Five hundred years "Auf Der Treppen": A history of the Trepp family of Fulda. Year Book / Leo Baeck Institute.
Citazione stile Chigago Style (17a edizione)Cohn, Warren I. "Five Hundred Years "Auf Der Treppen": A History of the Trepp Family of Fulda." Year Book / Leo Baeck Institute 1985.
Citatione MLA (8a ed.)Cohn, Warren I. "Five Hundred Years "Auf Der Treppen": A History of the Trepp Family of Fulda." Year Book / Leo Baeck Institute, 1985.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.