How did the white minority in South Africa see their situation in the apartheid times, let's say in 1970? For example, how did their mass media explain the black and coloured people being unhappy with the situation, the international sanctions, and other apartheid-related problems in the country? How did the state leaders plan to keep the white rule regime further on, what were they hoping for?
I am asking here, because all sources on this issue that I have seen look too much ideologically biased.