Columbia subject headings:
Pastoral poetry, Classical--History and criticism.
Theocritus--Criticism and interpretation.
Virgil. Bucolica.
Harvard subject headings:
Pastoral poetry, Classical--History and criticism.
Theocritus--Criticism and interpretation.
Virgil. Bucolica.
Princeton subject headings:
Pastoral poetry, Classical--History and criticism.
Virgil--Criticism and interpretation.