Ducado de Berg (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ducado de Berg" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

4books.google.com

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books.google.com

Pixton, Paul B. (1995). The German episcopacy and the implementation of the decrees of the Fourth Lateran Council : 1216–1245 : watchmen on the tower. Leiden u.a.: Brill. 210 páginas. ISBN 978-9004102620
Butler, Alban; Burns, Paul (2000). Butler's Lives of the Saints. New full ed. Collegeville (Minn.): Liturgical Press. 56 páginas. ISBN 978-0814623879
Knight, Charles (2012). The English Cyclopaedia: Geography. [S.l.]: Lightning Source UK Ltd. 1030 páginas. ISBN 978-1277123517
Encyclopædia Britannica: or, A dictionary of arts, sciences, and miscellaneous literature, enlarged and improved, Volume 3. [S.l.]: Google e-books. 570 páginas