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La Cassa per il Mezzogiorno, primo quinquennio: 1950 - 1955
Campilli, P., (1955)
Fünf Jahre Strassenbau Schleswig-Holstein 1945 - 1950
Erlenbach, Lutz, (1950)
Urban Motorways : Report of the London Conference org. by the British Road Federation, 1956
(1957)