Columbia subject headings:
Ruiz, Juan, approximately 1283-approximately 1350. Libro de buen amor--Congresses.
Harvard subject headings:
Ruiz, Juan, approximately 1283-approximately 1350--Criticism and interpretation--Congresses.
Ruiz, Juan, approximately 1283-approximately 1350. Libro de buen amor--Congresses.
Princeton subject headings:
Ruiz, Juan, approximately 1283-approximately 1350. Libro de buen amor--Congresses.