Columbia subject headings:
End of the world.
Maya astrology.
Harvard subject headings:
Apocalypse in literature--Congresses.
Apocalypse in mass media--Congresses.
End of the world--Congresses.
Latin America--Civilization--21st century--Congresses.
Latin American literature--21st century--History and criticism--Congresses.
Maya astrology--Congresses.
Maya calendar--Congresses.
Mexican literature--21st century--History and criticism--Congresses.
Two thousand twelve, A.D.--Congresses.
Princeton subject headings:
Apocalypse in literature--Congresses.
Apocalypse in mass media--Congresses.
End of the world--Congresses.
Latin America--Civilization--21st century--Congresses.
Latin American literature--21st century--History and criticism--Congresses.
Maya astrology--Congresses.
Maya calendar--Congresses.
Mexican literature--21st century--History and criticism--Congresses.
Two thousand twelve, A.D.--Congresses.