Columbia subject headings:
Harvard subject headings:
Christian ethics--Early works to 1800
Friendship--Early works to 1800
Love--Religious aspects--Christianity--Early works to 1800
Núñez, Ferrán. Tractado de amiçiçia--Criticism and interpretation.
Princeton subject headings:
Friendship--Early works to 1800.
Núñez, Ferrán, active 15th century. Tractado de amiçiçia.