Columbia subject headings:
Libel and slander--Australia.
Libel and slander--England.
Libel and slander--United States.
Mass media--Law and legislation--Australia.
Mass media--Law and legislation--England.
Mass media--Law and legislation--United States.
Harvard subject headings:
Freedom of speech--Australia.
Freedom of speech--England.
Freedom of speech--United States
Libel and slander--Australia.
Libel and slander--England.
Libel and slander--United States.
Mass media--Law and legislation--Australia.
Mass media--Law and legislation--England.
Mass media--Law and legslation--United States.
Princeton subject headings:
Libel and slander--Australia.
Libel and slander--England.
Libel and slander--United States.
Libel and slander--Wales.