Title from PDF caption (viewed on Aug. 23, 2011).
"Lead department or agency: DECC."
"Date: 25th February 2011."
Publisher's no.: URN 10/899.
Opt-in of nitrous oxide emissions from nitric acid production into the EU ETS. Published by Dept. of Energy and Climate Change in 2011. Publication and catalogue information, links to buy online and reader comments.