Columbia subject headings:
Documentary films--United States--History and criticism.
National characteristics, American, in motion pictures.
United States--In motion pictures.
Harvard subject headings:
Documentary films--United States--History and criticism
Documentary films--United States--History.
Identity (Psychology)--United States--History.
National characteristics, American, in motion pictures.
National characteristics, American--History
Nationalism--United States--History
United States--In motion pictures.
Princeton subject headings:
Documentary films--United States--History.
National characteristics, American, in motion pictures.
United States--In motion pictures.