Forschungen zur Völkerpsychologie und Soziologie
Overview of sources here https://de.wikisource.org/wiki/Forschungen_zur_V%C3%B6lkerpsychologie_und_Soziologie
| Title | Authors | Published Date | Languages |
|---|---|---|---|
| On the Theoretical and Economic Foundations of Syndicalism | Christiaan Cornelissen | 1926 | EN, DE |