Columbia subject headings:
Love poetry, Spanish--History and criticism.
Ruiz, Juan, approximately 1283-approximately 1350. Libro de buen amor.
Spanish poetry--To 1500--History and criticism.
Harvard subject headings:
Love poetry, Spanish--History and criticism.
Ruiz, Juan, active 1343. Libro de buen amor.
Ruiz, Juan, approximately 1283-approximately 1350. Libro de buen amor.
Spanish poetry--To 1500--History and criticism
Princeton subject headings:
Love poetry, Spanish--History and criticism.
Ruiz, Juan, approximately 1283-approximately 1350. Libro de buen amor.
Spanish poetry--To 1500--History and criticism.