Columbia subject headings:
Metastasio, Pietro, 1698-1782--Criticism and interpretation.
Harvard subject headings:
Melodrama, Italian--History and criticism.
Metastasio, Pietro, 1698-1782--Criticism and interpretation.
Metastasio, Pietro, 1698-1782--Language.
Princeton subject headings:
Metastasio, Pietro, 1698-1782--Criticism and interpretation.