Madigan, Arnold R., Deborah A. MacDonald, Dari R. Dornan, and Henry C. Jr. Rosenthal. “Regulation and Deregulation of the Natural Gas Industry in the United States”. Alberta Law Review 25, no. 1 (1): 2. Accessed November 21, 2019. http://albertalawreview.com/index.php/ALR/article/view/724.