APA (7th ed.) Citation

Iglesia Católica & Alejandro IV, P. (1999). Alexander IV, 1254-1261. Archivio Segreto Vaticano.

Chicago Style (17th ed.) Citation

Iglesia Católica and Papa Alejandro IV. Alexander IV, 1254-1261. [Cittá del Vaticano: Archivio Segreto Vaticano, 1999.

MLA (9th ed.) Citation

Iglesia Católica and Papa Alejandro IV. Alexander IV, 1254-1261. Archivio Segreto Vaticano, 1999.

Warning: These citations may not always be 100% accurate.