Columbia subject headings:
Códice de Huichapan.
Manuscripts, Otomi.
Otomi Indians--History.
Otomi calendar.
Otomi language.
Harvard subject headings:
Aztecs--History
Biblioteca Nacional de Antropología e Historia.
Códice de Huichapan.
Manuscripts, Otomi--Mexico.
Otomi Indians--History--Sources.
Otomi Indians--History.
Otomi Indians--Missions--History--Sources.
Otomi calendar--Early works to 1800.
Otomi calendar.
Otomi language--Texts.
Princeton subject headings:
Aztecs--History.
Códice de Huichapan.
Otomi Indians--History.
Otomi calendar.
Otomi language--Texts.