This work was first published in Zambia and is now in the public domain because its copyright protection has expired by virtue of the Copyright and Performance Rights Act, enacted 1994, amended 2010 (details). The work meets one of the following criteria:
It is an anonymous work or pseudonymous work and 50 years have passed since the date of its publication
It is an audiovisual work or a sound recording or film and 50 years have passed since the date of its creation (or publication, whatever date is the latest)
It is a broadcast or cable programme and 50 years have passed since the year the programme was included in a cable programme service
It is a work created under the direction of the state and 50 years have passed since the year the work was created
It is another kind of work, and 50 years have passed since the year of death of the author (or last-surviving author)
