Columbia subject headings:
Harvard subject headings:
Bibliography--Methodology--Congresses.
Books--France--History--Congresses.
Books--History--Congresses.
Printing--France--History--Congresses.
Printing--History--Congresses.
Princeton subject headings:
Bibliography--Methodology--Congresses.
Books--France--History--Congresses.
Books--History--Congresses.
Printing--France--History--Congresses.
Printing--History--Congresses.