Columbia subject headings:
Berlanga, David G., 1886-1914.
Education--Mexico--San Luis Potosí (State)--History--20th century.
Educational change--Mexico--San Luis Potosí (State)--History--20th century.
Harvard subject headings:
Princeton subject headings:
Berlanga, David G., 1886-1914.
Educational change--Mexico--San Luis Potosí (State)--20th century.
Teachers--Mexico--San Luis Potosí (State)--Biography.