Columbia subject headings:
Harvard subject headings:
Alfonso X, King of Castile and Leon, 1221-1284. Primera crónica general.
Juan Manuel, Infante of Castile, 1282-1347. Crónica abreviada.
Spain--Historiography.
Spain--History--Sources.
Princeton subject headings:
Historiography--Spain.
Juan Manuel, Infante of Castile, 1282-1347. Crónica abreviada.