Columbia subject headings:
Authors, Italian--20th century--Biography.
Catholic Church--Italy--Clergy--Biography.
Orione, Luigi, Saint, 1872-1940--Correspondence.
Orione, Luigi, Saint, 1872-1940--Friends and associates.
Silone, Ignazio, 1900-1978--Correspondence.
Silone, Ignazio, 1900-1978--Friends and associates.
Harvard subject headings:
Authors, Italian--20th century--Biography
Catholic Church--Italy--Clergy--Biography.
Orione, Luigi, 1872-1940--Correspondence.
Orione, Luigi, 1872-1940--Friends and associates.
Silone, Ignazio, 1900-1978--Correspondence.
Silone, Ignazio, 1900-1978--Friends and associates.
Princeton subject headings:
Orione, Luigi, 1872-1940--Correspondence.
Orione, Luigi, 1872-1940--Influence.
Silone, Ignazio, 1900-1978--Correspondence.
Silone, Ignazio, 1900-1978--Friends and associates.