Columbia subject headings:
Encyclopedias and dictionaries--Early works to 1600--History and criticism.
Harvard subject headings:
Encyclopedias and dictionaries--Early works to 1600--History and criticism.
Encyclopedias and dictionaries--History and criticism--Congresses.
Learning and scholarship--History--Medieval, 500-1500--Congresses
Princeton subject headings:
Encyclopedias and dictionaries--History and criticism--Congresses.
Europe--Intellectual life--Congresses.
Learning and scholarship--History--Medieval, 500-1500--Congresses.