Columbia subject headings:
Pea, Enrico, 1881-1958--Criticism and interpretation.
Pea, Enrico, 1881-1958--Political and social views.
Harvard subject headings:
Pea, Enrico, 1881-1958--Criticism and interpretation.
Pea, Enrico, 1881-1958--Political and social views.
Princeton subject headings:
Pea, Enrico, 1881-1958--Criticism and interpretation.
Pea, Enrico, 1881-1958--Political and social views.