Columbia subject headings:
Anarchism--France--History--19th century--Congresses.
Proudhon, P.-J. (Pierre-Joseph), 1809-1865--Political and social views--Congresses.
Harvard subject headings:
Princeton subject headings:
Anarchism--France--History--19th century--Congresses.
Proudhon, P.-J. (Pierre-Joseph), 1809-1865--Political and social views--Congresses.