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The United States and Turkey and Iran
Thomas, Lewis Victor, (1971)
The course of German foreign policy in the Middle East between the World Wars
Hirszowicz, Lukasz, (1975)
La pénétration allemande au Moyen-Orient 1919 - 1939 : le cas de la Turquie, de l'Iran et de l'Afghanistan
Fleury, Antoine, (1977)