Columbia subject headings:
Harvard subject headings:
Latin America--History.
Mexico--History.
Montezuma I, Emperor of Mexico, 1398-1469.
Spengler, Oswald, 1880-1936.
Princeton subject headings:
Latin America--History.
Mexico--History.
Montezuma I, Emperor of Mexico, 1398-1469.
Spengler, Oswald, 1880-1936.