Columbia subject headings:
Information science--Economic aspects.
Information science--Philosophy.
Information science--Political aspects.
Information science--South Africa.
Information theory.
Harvard subject headings:
Information science--Economic aspects.
Information science--Philosophy.
Information science--Political aspects.
Information science--South Africa.
Information theory.
Princeton subject headings:
Information science--Economic aspects.
Information science--Philosophy.
Information science--Political aspects.
Information science--South Africa.
Information theory.