RITTER, Alan. Political Thought of Pierre-Joseph Proudhon
PROUDHON, Pierre-Joseph (1809-1865)* bibliographieRITTER, AlanPrinceton, Princeton University Press, 1969, 222 p. ISBN-13 : 978-0691075266. Hardcover.
- Greenwood Press, 1980. 234 p. ISBN-13 : 978-0313227196. Hardcover.