Ƙirƙirar wani nau'i mai mahimmanci na wannan jumla'' Ofishin Harkokin Waje na Jamus daga Neurath zuwa Ribbentrop''.
Tabbas, wani nau'i mai rikitarwa na jumla shine "' 'Ofishin Harkokin Waje na Jamus daga Neurath zuwa Ribbentrop '' a Gordon A. Craig da Felix Gilbert (ed. ' 'Diplomats 1919 - 39'. "''''''''''''''''''