Columbia subject headings:
Virgil. Aeneis.
Virgil. Bucolica.
Virgil. Georgica.
Harvard subject headings:
Virgil--Criticism and interpretation.
Virgil. Aeneis.
Virgil. Bucolica.
Virgil. Georgica.
Princeton subject headings:
Virgil. Aeneis.
Virgil. Bucolica.
Virgil. Georgica.