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Special pages :
Positivism
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Authors or organizations linked:
| Texts with keyword "Positivism" | Author | Date | |
|---|---|---|---|
| Letter to Karl Marx, March 21, 1869 | Friedrich Engels | Mar 1869 | |
| Letter to Friedrich Engels, March 19, 1870 | Karl Marx | Mar 1870 | |
| Letter to Ferdinand Tönnies, January 24, 1895 | Friedrich Engels | Jan 1895 |