Columbia subject headings:
Harvard subject headings:
Spanish literature--19th century--History and criticism--Congresses
Zola, Émile, 1840-1902--Appreciation--Spain--Congresses.
Zola, Émile, 1840-1902--Congresses.
Zola, Émile, 1840-1902--Criticism and interpretation--Congresses.
Princeton subject headings:
Zola, Émile, 1840-1902--Appreciation--Spain--Congresses.