http://www.chmiddletonltd.co.uk/plastic-recycling/barnsley.html

http://www.letsrecycle.com/news/latest-news/general/lnewsitem.2014-02-04.3026090445

http://www.resource.co/materials/article/terracycle-and-mcvitie%E2%80%99s-launch-recycling-contest

http://www.businessgreen.com/bg/news/2326661/crumbs-gbp125-on-offer-for-old-biscuit-wrappers

http://trustnews.co.uk/Terracycle-and-McVities-in-new-drive-to-reduce-waste-wrappers

http://www.thinkpackaging.com/view_news.php?news_id=3012

http://www.packagingnews.co.uk/news/terracycle-and-mcvities-in-new-drive-to-reduce-waste-wrappers/

http://www.edie.net/news/5/McVities-unveils-wrappers-to-riches-recycling-competition/

http://www.plasticsinpackaging.com/newsline/index.php?option=com_content&view=article&id=702:brand-launches-wrappers-to-riches-contest&catid=93:newsline&Itemid=58