Frederico II, Grão-Duque de Baden (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Frederico II, Grão-Duque de Baden" in Portuguese language version.

refsWebsite

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2books.google.com

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books.google.com

Pinfield, Nick (2015). A/AS Level History for AQA Democracy and Nazism: Germany, 1918–1945 Student Book (em inglês). Cambridge: Cambridge University Press. p. 6
Bilton, Joshua (2021). Germany in the Great War: Verdun & Somme (em inglês). Barnsley: Pen and Sword Military. p. 43