Columbia subject headings:
Harvard subject headings:
Education and state--Brazil--Pernambuco--History--20th century.
Education--Brazil--Pernambuco--History--20th century.
Public schools--Brazil--Pernambuco--History--20th century.
Princeton subject headings:
Education and state--Brazil--Pernambuco--History--20th century.
Education--Brazil--Pernambuco--History--20th century.
Public schools--Brazil--Pernambuco--History--20th century.