Columbia subject headings:
Pecqueur, C. (Constantin), 1801-1887--Congresses.
Political science--Philosophy--History--19th century--Congresses.
Republicanism--France--History--19th century--Congresses.
Socialism--France--History--19th century--Congresses.
Harvard subject headings:
Pecqueur, C. (Constantin), 1801-1887--Congresses.
Political science--Philosophy--History--19th century--Congresses.
Republicanism--France--History--19th century--Congresses.
Socialism--France--History--19th century--Congresses.
Princeton subject headings:
Pecqueur, C. (Constantin), 1801-1887--Congresses.
Political science--Philosophy--History--19th century--Congresses.
Republicanism--France--History--19th century--Congresses.
Socialism--France--History--19th century--Congresses.