'... [organized] by the Commission of the European Communities Directorate-General Energy and Directorate-General for Scientific and Technical Information and Information Management' - title page verso.
New coal upgrading processes : international symposium, Luxembourg, 26 to 28 September 1978 : Vol.2. ISBN 0861080599. Published by 'Colliery guardian' in 1979. Publication and catalogue information, links to buy online and reader comments.