'Greater safety and better health, improved efficiency, reduced costs and overheads, concentrated marketing and sales efforts - these are the four roads to success in the 'seventies' : address by Derek Ezra, Chairman of the National Coal Board, to the Annual Conference of the National Union of Mineworkers at Aberdeen, 7 July, 1971.
Ezra, Derek.
Great Britain.National Coal Board.
London : National Coal Board,
[1971?]
Cover title.