Columbia subject headings:
Documentary films--Authorship.
Documentary films--Production and direction.
Motion picture authorship.
Motion pictures--Production and direction.
Harvard subject headings:
Documentary films--Authorship
Documentary films--Production and direction
Motion picture authorship
Motion pictures--Production and direction
Princeton subject headings:
Documentary films--Authorship.
Documentary films--Production and direction.
Motion picture authorship.
Motion pictures--Production and direction.