Columbia subject headings:
Biblioteca Nacional (Brazil)--Periodicals--Bibliography--Microform catalogs.
Brazilian periodicals--Brazil--Bibliography--Microform catalogs.
Periodicals on microfilm--Bibliography--Catalogs.
Harvard subject headings:
Biblioteca Nacional (Brazil)--Periodicals--Bibliography--Catalogs, Microfilm.
Brazilian newspapers--Microform catalogs.
Brazilian periodicals--Microform catalogs.
Periodicals on microfilm--Catalogs.
Princeton subject headings:
Biblioteca Nacional (Brazil)--Periodicals--Bibliography--Microfilm catalogs.
Brazilian newspapers--Brazil--Bibliography--Microfilm catalogs.
Brazilian periodicals--Brazil--Bibliography--Microfilm catalogs.
Periodicals on microfilm.