Columbia subject headings:
Chávez, Ezequiel A., 1868-1946--Archives--Catalogs.
Education--Mexico--History--Sources.
Harvard subject headings:
Archives--Mexico--Mexico City--Catalogs.
Archivo Histórico de la UNAM--Catalogs.
Chaávez, Ezequiel Adeodato, 1868-1946--Archives--Catalogs.
Princeton subject headings: