Columbia subject headings:
Education and state--Mexico--Oaxaca (State)--History--20th century.
Education--Mexico--Oaxaca (State)--History--20th century.
Mexico--History--Revolution, 1910-1920.
Teachers--Mexico--Oaxaca (State)--History--20th century.
Harvard subject headings:
Education and state--Mexico--Oaxaca (State)--History--20th century.
Mexico--History--Revolution, 1910-1920.
Oaxaca (Mexico : State)--History--20th century.
Teachers--Mexico--Oaxaca (State)--History--20th century.
Princeton subject headings: