Columbia subject headings:
Credit--History--Congresses.
Finance--Europe--History--Congresses.
Usury--History--Congresses.
Harvard subject headings:
Credit--History--Congresses.
Finance--Europe--History--Congresses.
Usury--History--Congresses.
Princeton subject headings:
Credit--Europe--History--Congresses.
Usury--Europe--History--Congresses.