Columbia subject headings:
Anarchism--Brazil--Bibliography.
Brazil--Politics and government--1889---Bibliography.
Communism--Brazil--Bibliography.
Harvard subject headings:
Anarchism--Brazil--Bibliography.
Brazil--Politics and government--1889---Bibliography.
Communism--Brazil--Bibliography.
Princeton subject headings:
Anarchism--Brazil--Bibliography.
Brazil--Politics and government--1889---Bibliography.
Communism--Brazil--Bibliography.