Bulgaria.
Great Britain.Board of Trade.
Great Britain.Department of Trade and Industry.
British Overseas Trade Board.
Great Britain.Foreign and Commonwealth Office.
Great Britain.Overseas Trade Services.
London : Board of Trade,
Description based on: 1958. -- Cover title.
Issued by: -1970 Board of Trade ; 1971-1972 Dept. of Trade and Industry ; 1973- British Overseas Trade Board ; - Foreign and Commonwealth Office and the Dept. of Trade and Industry, with Overseas Trade Services
Export marketing