HC Deb 18 February 1965 vol 706 c271W
10. Mr. Wall

asked the Prime Minister why Her Majesty's Government continue officially to refer to Southern Rhodesia when, since the independence of Zambia, the Rhodesian Government have decided that the country shall be known as Rhodesia.

The Prime Minister

It is already our practice, where appropriate, to use "Rhodesia" for informal purposes. It remains correct for legal and other formal purposes to use the title "Southern Rhodesia".