Columbia subject headings:
Harvard subject headings:
Libraries--Mexico--Statistics--Periodicals.
Mexico--Intellectual life--20th century--Statistics--Periodicals.
Museums--Mexico--Statistics--Periodicals.
Recreation--Mexico--Statistics--Periodicals.
Princeton subject headings:
Libraries--Mexico--Statistics--Periodicals.
Mexico--Intellectual life--20th century--Statistics--Periodicals.
Museums--Mexico--Statistics--Periodicals.
Periodicals.
Recreation--Mexico--Statistics--Periodicals.
Statistics.