Columbia subject headings:
Harvard subject headings:
Chapbooks, Portuguese--Bibliography--Catalogs.
Chapbooks, Portuguese--Catalogs.
Instituto de Estudos Teatrais Jorge de Faria--Catalogs.
Librettos--Catalogs.
Opera--Portugal--History--Sources.
Theater--Portugal--History--Sources.
Princeton subject headings:
Chapbooks, Portuguese--Bibliography--Catalogs.