id	domain	url
commonwealth-132	dx.doi.org	http://dx.doi.org/10.15367/com.v19i1.132
commonwealth-132	www.usnews.com	www.usnews.com/news/articles
commonwealth-132	www.publicpolicypolling.com	www.publicpolicypolling.com/pdf/2013/ppp_release_
commonwealth-132	www.gallup.com	www.gallup.com/poll/190355/oppositionfrackingmounts.aspx
commonwealth-132	themonkeycage.org	http://themonkeycage.org/2012/03/thepoliticalconsequencesofgas
commonwealth-132	www.eia.gov	www.eia.gov/tools/faqs
commonwealth-132	www.eia.gov	www.eia.gov/petroleum/drilling/pdf/marcellus.pdf
commonwealth-132	www.eia.gov	www.eia.gov/dnav/ng/hist/n3010us3a.htm