Columbia subject headings:
Incunabula--Bibliography--Catalogs.
Portugal--Bibliography--Catalogs.
Portuguese literature--Classical period, 1500-1700--Bibliography.
Rare books.
Harvard subject headings:
Biblioteca de D. Manuel II--Catalogs.
Incunabula--Bibliography--Catalogs.
Manuel II, King of Portugal, 1889-1932--Library--Catalogs.
Portugal--Bibliography--Catalogs.
Portuguese literature--Classical period, 1500-1700--Bibliography.
Rare books
Princeton subject headings:
Catalogs.
Incunabula--Portugal--Bibliography--Catalogs.
Portugal--Bibliography--Catalogs.
Portuguese literature--Classical period, 1500-1700--Bibliography.
Rare books--Portugal--Bibliography.