Columbia subject headings:
Africanization--Botswana.
Civil service--Botswana.
Occupational training--Botswana.
Harvard subject headings:
Africanization--Botswana.
Civil service--Botswana.
Occupational training--Botswana.
Princeton subject headings:
Africanization--Botswana.
Civil service--Botswana.
Occupational training--Botswana.