APA (7th ed.) Citation

Benedikt, X. (2008). Apostolic Letter Summorum Pontificum July 7, 2007. Philippine canonical forum, 10, 49-58.

Chicago Style (17th ed.) Citation

Benedikt, XVI. "Apostolic Letter Summorum Pontificum July 7, 2007." Philippine Canonical Forum 10 (2008): 49-58.

MLA (8th ed.) Citation

Benedikt, XVI. "Apostolic Letter Summorum Pontificum July 7, 2007." Philippine Canonical Forum, vol. 10, 2008, pp. 49-58.

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