Columbia subject headings:
Pérez Galdós, Benito, 1843-1920--Criticism and interpretation.
Harvard subject headings:
Pérez Galdós, Benito, 1843-1920--Criticism and interpretation.
Popular literature--Spain.
Spanish literature--19th century--History and criticism
Princeton subject headings:
Pérez Galdós, Benito, 1843-1920--Criticism and interpretation.