Treaty Series No. 28 (1988). Convention between the government of the United Kingdom of Great Britain and Northern Ireland and the government of the People's Republic of Bulgaria for the avoidance of double taxation with respect to taxes on income and capital gains [electronic resource].
- Cambridge [eng.] : Proquest LLC, 2007.
- Government document
1 online resource (45 p.: ).
- [1987/88] ; Cm 370
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