Columbia subject headings:
Harvard subject headings:
French language--Congresses.
French literature--History and criticism--Congresses
Italian language--Congresses.
Italian literature--History and criticism--Congresses
Prefaces--Congresses.
Prologues and epilogues--Congresses.
Princeton subject headings:
Prefaces--History and criticism--Congresses.
Romance-language literature--History and criticism--Congresses.