Tarling, Peter N.
North Borneo And The Spanish- American War
 Buku Teks
Preston, Paul
The Spanish civil war 1936-1939
Dorsey Press, 1986
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Thomas, Hugh
The Spanish civil war
Harper & Brothers, 1961
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Cattell, David T.
Soviet diplomacy and the spanish civil war / David T. Cattell
University of California Press, 1957
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Jackson, Gabriel
The Spanish Republic and the Civil War 1931-1939 / by Gabriel Jackson
Princeton University Press, 1972
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