Columbia subject headings:
Historiography--Congresses.
History--Congresses.
Le Roy Ladurie, Emmanuel--Congresses.
Harvard subject headings:
Climatology--Europe--History--Congresses.
Europe--Historiography--Congresses.
Europe--History--Congresses.
Le Roy Ladurie, Emmanuel--Congresses.
Princeton subject headings:
Historiography--Congresses.
History--Congresses.
Le Roy Ladurie, Emmanuel--Congresses.