Citazione Stile APA (7a Edizione)

Ullmann, W. (1976). The legal validity of the papal electoral pacts. The papacy and political ideas in the middle ages, 3-35.

Citazione stile Chigago Style (17a edizione)

Ullmann, Walter. "The Legal Validity of the Papal Electoral Pacts." The Papacy and Political Ideas in the Middle Ages 1976: 3-35.

Citatione MLA (8a ed.)

Ullmann, Walter. "The Legal Validity of the Papal Electoral Pacts." The Papacy and Political Ideas in the Middle Ages, 1976, pp. 3-35.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.