Columbia subject headings:
Ruiz, Juan, approximately 1283-approximately 1350--Poetry.
Ruiz, Juan, approximately 1283-approximately 1350.
Harvard subject headings:
Ruiz, Juan, approximately 1283-approximately 1350--Poetry.
Ruiz, Juan, approximately 1283-approximately 1350.
Princeton subject headings:
Poetry.
Ruiz, Juan, approximately 1283-approximately 1350--Poetry.
Ruiz, Juan, approximately 1283-approximately 1350.