Papa João XVIII (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Papa João XVIII" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

1britannica.com

40^th place

17^th place

471^st place

148^th place

britannica.com

"John XVIII (or XIX) POPE [1004-1009]". Encyclopædia Britannica

newadvent.org

Kirsch, Johann Peter. "Pope John XVIII (XIX)." The Catholic Encyclopedia Vol. 8. New York: Robert Appleton Company, 1910