Gwen/Croaker upthread: I've got the Autumn 1983 pupil's book. The songs were:

Patrick on the Railroad (Ireland, aka "...to work upon the railway")
Tinga Layo (West Indies)
Skye Boat Song (Scotland - obviously!)
The Blue-Tail Fly (USA)
Guy Fawkes (England - a prime example of a song that wouldn't be taken seriously today: best/worst line "that is, he would have used the gas, but solely was prevented, 'cause gas, you know, in James's time, it wasn't then invented")
Sleep my Baby (Wales)
Christmas Day in the Morning (England)
Calypso Carol (Canada)
Song of the Crib (Germany)
Now in Bethlem (Mexico)
Hey Little Bull (Brazil)