"Murray Green" skrev i melding
...

At one time, many years ago, the subject was available to the public.
Does anyone know if it still is and where it can be obtained? I
understand it is relatively small and a nice addition to the radio
shack for looking up facts etc., about DX countries worked. Thanks.
Murray, K3BEQ

Not quite reliable. I would go for Encylopedia Brittanica