Found in articles
<http://www.britannica.com/EBchecked/topic/121017/Clement-III>. Loughlin, James. "Pope Clement III." The Catholic Encyclopedia. Vol. 4. New York: Robert Appleton
oor hierdie onderwerp onder die titel: Catholic Encyclopedia (1913)/Pope Clement II CE Inskrywing in die Catholic Encyclopedia (Engels) CF Inskrywing
0500017980. Clement VI. (2008). Encyclopædia Britannica. Deluxe Edition. Chicago: Encyclopædia Britannica. Weber, N. (1908). Pope Clement VI. In The Catholic
0-500-01798-0. Clement VII. (2008). Encyclopædia Britannica. Deluxe Edition. Chicago: Encyclopædia Britannica. Thurston, H. (1908). Pope Clement VII. In The
New York. Clement XI. (2008). Encyclopædia Britannica. Deluxe Edition. Chicago: Encyclopædia Britannica. Loughlin, J. (1908). Pope Clement XI. In The