Columbia subject headings:
Cicero, Marcus Tullius--Criticism and interpretation.
Seneca, Lucius Annaeus, approximately 4 B.C.-65 A.D.--Criticism and interpretation.
Virgil--Criticism and interpretation.
Harvard subject headings:
Cicero, Marcus Tullius--Criticism and interpretation.
Seneca, Lucius Annaeus, approximately 4 B.C.-65 A.D.--Criticism and interpretation.
Virgil--Criticism and interpretation.
Princeton subject headings:
Seneca, Lucius Annaeus, approximately 4 B.C.-65 A.D.--Criticism and interpretation.