Gaya APA

XVI, B. (2010). Joseph Ratzinger in Communio, vol.1: The unity of the Church . Introduction by David L. Schindler. . Grand Rapids: Grand Rapids William B Eerdmands Publishing Co.

Gaya MLA

XVI, Benedict. "Joseph Ratzinger in Communio, vol.1: The unity of the Church . Introduction by David L. Schindler. ". Grand Rapids: Grand Rapids William B Eerdmands Publishing Co, 2010. Buku.