Columbia subject headings:
Harvard subject headings:
Mirbeau, Octave, 1848-1917--Congresses.
Mirbeau, Octave, 1848-1917--Knowledge--France--Normandy--Congresses.
Mirbeau, Octave, 1848-1917--Knowledge--Normandy (France)--Congresses.
Normandy (France)--In literature--Congresses.
Princeton subject headings:
Mirbeau, Octave, 1848-1917--Congresses.
Mirbeau, Octave, 1848-1917--Knowledge--France--Normandy--Congresses.
Normandy (France)--In literature--Congresses.