Robinson, C., & Marshall, E. (1981). What future for British coaln: Optimism or realism on the prospects to the year 2000. Institute of Economic Affairs.
Čikaški stil citiranja (17. izdanje)Robinson, Colin, i Eileen Marshall. What Future for British Coaln: Optimism or Realism on the Prospects to the Year 2000. London: Institute of Economic Affairs, 1981.
MLA način citiranja (9. izdanje)Robinson, Colin, i Eileen Marshall. What Future for British Coaln: Optimism or Realism on the Prospects to the Year 2000. Institute of Economic Affairs, 1981.
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