Columbia subject headings:
Mexico--Civilization.
Mexico--Description and travel.
Mexico--History, Local.
Harvard subject headings:
Mexico--Civilization--Encyclopedias.
Mexico--Civilization.
Mexico--Description and travel--Encyclopedias.
Mexico--Description and travel.
Mexico--History, Local--Encyclopedias.
Mexico--History, Local.
Princeton subject headings:
Mexico--Civilization.
Mexico--Description and travel.
Mexico--History, Local.