Publication date 12 July 2016 Source http://www.legislation.gov.uk/id/eudn/2016/1392 PDF: http://www.legislation.gov.uk/eudn/2016/1392/2016-07-12/data.pdf...
Publication date 25 July 2017 Source http://www.legislation.gov.uk/id/eudn/2017/1392 PDF: http://www.legislation.gov.uk/eudn/2017/1392/2017-07-25/data.pdf...
Publication date 11 October 2016 Source http://www.legislation.gov.uk/id/eudn/2016/1830 PDF: http://www.legislation.gov.uk/eudn/2016/1830/2016-10-11/data.pdf...
Publication date 27 October 2014 Source http://www.legislation.gov.uk/id/eudn/2014/746 PDF: http://www.legislation.gov.uk/eudn/2014/746/2014-10-27/data.pdf...
1046049551 Source Internet Archive identifier: haydnsdictionary11hayd https://archive.org/download/haydnsdictionary11hayd/haydnsdictionary11hayd.pdf...
OCLC: 899965368 Source Internet Archive identifier: illustrirtesarch01mull https://archive.org/download/illustrirtesarch01mull/illustrirtesarch01mull.pdf...
1041620163 Source Internet Archive identifier: breuecompendiodi00barc https://archive.org/download/breuecompendiodi00barc/breuecompendiodi00barc.pdf...