Here are a few primary sources I have digitised during the course of my research and uploaded to archive.org:
Author | Title | Publication Year | Link |
Bureau of Foreign Trade | China Industrial Handbooks: Kiangsu | 1933 | Archive.org |
Bureau of Foreign Trade | China Industrial Handbooks: Chekiang | 1935 | Archive.org |
Rudolf Taeuber | Die Börsen der Welt | 1911 | Archive.org |
Gottfried Eißfeldt | Die Kartellierung der Deutschen Elektroindustrie | 1928 | Archive.org |
Reichsverband der Deutschen Industrie | Bericht der China Studienkommission des Reichsverbandes der Deutschen Industrie | 1930 | Archive.org |
Kwok Lok (郭樂) | 郭樂自述《回憶錄》(Memoir of Kwok Lok) | 1949 | Archive.org |
La Librairie française | H.E. Hsuehsi Chih-chi Chow | 1924 | Archive.org |