Columbia subject headings:
Valera, Juan, 1824-1905--Criticism and interpretation.
Valera, Juan, 1824-1905--Exhibitions.
Harvard subject headings:
Authors, Spanish--19th century--Biography--Exhibitions.
Valera, Juan, 1824-1905--Exhibitions.
Princeton subject headings:
Valera, Juan, 1824-1905--Criticism and interpretation.
Valera, Juan, 1824-1905--Exhibitions.