Columbia subject headings:
Harvard subject headings:
Bosco, Giovanni, Saint, 1815-1888.
Princeton subject headings:
Bosco, Giovanni, Saint, 1815-1888.
Church work with youth--Italy--Turin--Catholic Church--History--19th century--Sources.
Oratorio di S. Francesco di Sales (Turin, Italy)--History--Sources.
Salesians--Italy--Turin--History--Sources.
Youth--Italy--Turin--Religious life--History--19th century--Sources.