Cita APA (7a ed.)

Barraclough, G. (1968). The medieval papacy. Thames and Hudson.

Cita Chicago Style (17a ed.)

Barraclough, Geoffrey. The Medieval Papacy. London: Thames and Hudson, 1968.

Cita MLA (9a ed.)

Barraclough, Geoffrey. The Medieval Papacy. Thames and Hudson, 1968.