Columbia subject headings:
Harvard subject headings:
Pérez Galdós, Benito, 1843-1920--Bibliography.
Pérez Galdós, Benito, 1843-1920--Dramatic works--Bibliography.
Princeton subject headings:
Pérez Galdós, Benito, 1843-1920--Bibliography.
Pérez Galdós, Benito, 1843-1920--Dramatic works--Bibliography.