Energy trends /
Great Britain.Department of Trade and Industry.
National Statistics (Great Britain)
Great Britain.Department for Business, Enterprise and Regulatory Reform.
London : DTI,
2001-
"A quarterly statistical bulletin from the Department of Trade and Industry"
Issued by the Dept. of Trade and Industry, June 2001-June 2007; by the Dept. for Business, Enterprise and Regulatory Reform, Sept. 2007-