Columbia subject headings:
Comba, Emilio, 1839-1904--Bibliography.
Comba, Emilio, 1839-1904.
Italy--Church history--19th century.
Waldenses--Italy--Biography.
Harvard subject headings:
Church historians--Italy--Biography.
Comba, Emilio, 1839-1904.
Princeton subject headings:
Comba, Emilio, 1839-1904--Bibliography.
Comba, Emilio, 1839-1904.
Italy--Church history--19th century.
Waldenses--Italy--Biography.