Columbia subject headings:
Mannequins (Figures) in literature.
Marionettes in literature.
Robots in literature.
Theater--France--History--20th century.
Theater--Germany--History--20th century.
Theater--Italy--History--20th century.
Harvard subject headings:
Mannequins (Figures) in literature.
Marionettes in literature.
Robots in literature.
Theater--France--History--20th century.
Theater--Germany--History--20th century.
Theater--Italy--History--20th century
Princeton subject headings:
Costume--History--20th century.
Mannequins (Figures) in literature.
Marionettes in literature.
Robots in literature.
Theater--Europe--History--20th century.
Theaters--Stage setting and scenery--History--20th century.