Columbia subject headings:
Harvard subject headings:
Computer programs--Great Britain--Patents.
Computer programs--Patents
Computer software--Law and legislation--Great Britain.
Copyright licences--Great Britain.
Copyright--Compter programs--Great Britain.
Copyright--Computer programs--Great Britain.
Copyright--Great Britain--Compter programs.
Princeton subject headings:
Computer programs--Great Britain--Patents.
Copyright licenses--Great Britain.
Copyright--Computer programs--Great Britain.