Columbia subject headings:
Europe--In literature--Congresses.
Green, Julien, 1900-1998--Knowledge--Europe--Congresses.
Harvard subject headings:
Europe--In literature--Congresses.
Green, Julien, 1900-1998--Knowledge--Europe--Congresses.
Princeton subject headings:
Europe--In literature--Congresses.
Green, Julien, 1900-1998--Knowledge--Europe--Congresses.