Columbia subject headings:
Motion pictures--History--20th century.
Motion pictures.
Patti, Ercole, 1903---Knowledge and learning.
Harvard subject headings:
Motion pictures--History--20th century
Patti, Ercole, 1903---Knowledge--Motion pictures.
Princeton subject headings:
Motion pictures--History--20th century.
Patti, Ercole, 1903---Knowledge--Motion pictures.