Gray, W. G. (2003). Germany's cold war: The global campaign to isolate East Germany, 1949-1969. University of North Carolina Press.
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Lua i Stíl Chicago (17ú heag.)
Gray, William Glenn. Germany's Cold War: The Global Campaign to Isolate East Germany, 1949-1969. Chapel Hill: University of North Carolina Press, 2003.
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Lua MLA (9ú heag.)
Gray, William Glenn. Germany's Cold War: The Global Campaign to Isolate East Germany, 1949-1969. University of North Carolina Press, 2003.
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