Source et copyright
Source: The National Archives of the United Kingdom, [s.l.], Kew, Richmond, Surrey, TW9 4DU. http://www.nationalarchives.gov.uk/, Records created or inherited by the National Coal Board, and of related bodies, COAL. Financial aspects of European Coal and Steel Community (The Schuman Plan) 1950 May-1955 Dec., COAL 23/325.
Copyright: (c) The National Archives of the United Kingdom