Columbia subject headings:
Douglas, Norman, 1868-1952.
Orioli, Giuseppe, 1884-1942.
Prentice, Charles.
Harvard subject headings:
Douglas, Norman, 1868-1952
Orioli, Giuseppe, 1884-1942.
Prentice, Charles, 1898-1970.
Prentice, Charles.
Princeton subject headings:
Douglas, Norman, 1868-1952.
Orioli, Giuseppe, 1884-1942.
Prentice, Charles.