Oliveira, A. Ramos
Politics, economics and men of modern Spain
Victor Gollancz Ltd., 1946
 Buku Teks
Oliveira, Edmundo Capelas de
Politics, Economics and men of modern spain 1808-1946
Victor Gollancz Ltd., 1946
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Madariaga, Salvador de
Spain a modern history / Salvador de Madariaga
Frederick A. Praeger, 1958
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Wasson, Ellis
A history of modern Britain: 1714 to the present
Wiley-Blackwell, 2010
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Kitchen, Martin
A history of modern germany 1800 to the present
Blackwell Pub, 2012
 Buku Teks