Kunkel, Wolfgang
An Introduction to roman legal and constitutional history / Wolfgang Kunkel
At The Clarendon Press, 1975
 Buku Teks
Dawson, Christopher
The making of Europe : an introduction to the history of European unity / Christopher Dawson
Sheed and Ward, 1946
 Buku Teks
Sontag, Raymond James
European diplomatic history 1871-1932
Crofts, 1933.
 Buku Teks
Collins, James
A history of modern European philosophy
The Bruce Publishing Company, 1954
 Buku Teks
Bohler, Jochen
The Waffen-SS: a European history
Oxford University Press, 2017
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