Columbia subject headings:
Education and state--Mexico--History.
Education--Mexico--History.
Religion in the public schools--Mexico--History.
Secularization--Mexico--History.
Harvard subject headings:
Education and state--Mexico--History
Education--Mexico--History
Religion in the public schools--Mexico--History.
Secularization--Mexico--History.
Princeton subject headings:
Church and education--Mexico--History.
Education and state--Mexico--History.
Secularism--Mexico--History.