APA (7th ed.) Citation

Gregor XV. Archivmaterialien zu Gregor XV. (Papst), 1554-1623.

Chicago Style (17th ed.) Citation

Gregor XV. Archivmaterialien Zu Gregor XV. (Papst), 1554-1623.

MLA (9th ed.) Citation

Gregor XV. Archivmaterialien Zu Gregor XV. (Papst), 1554-1623.

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