Columbia subject headings:
Harvard subject headings:
Latin prose literature, Medieval and modern--Criticism, Textual.
Petrus Alfonsi, 1062-1110?--Criticism, Textual.
Princeton subject headings:
Didactic literature, Latin (Medieval and modern)--Translations into Spanish.
Learning and scholarship.
Petrus Alfonsi, 1062-1110? Disciplina clericalis.
Petrus Alfonsi, 1062-1110?--Criticism and interpretation.