APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告:這些引文格式不一定是100%准確.