Columbia subject headings:
Delavat de Valera, María Dolores, 1846?-
Valera, Juan, 1824-1905.
Harvard subject headings:
Delavat de Valera, María Dolores, 1846?-
Valera, Juan, 1824-1905.
Princeton subject headings:
Authors, Spanish--19th century--Correspondence.
Valera, Dolores--Correspondence.
Valera, Juan, 1824-1905. Correspondence.