Zemni gas — разлика између измена

* -{[http://mitei.mit.edu/publications/reports-studies/future-natural-gas The future of Natural Gas MIT study]}-

* -{[http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2341738 A Comparison between Shale Gas in China and Unconventional Fuel Development in the United States: Health, Water and Environmental Risks] by Paolo Farah and Riccardo Tremolada. This is a paper presented at the Colloquium on Environmental Scholarship 2013 hosted by Vermont Law School (11 October 2013)}-

* GA Mansoori, N Enayati, LB Agyarko [http://www.worldscientific.com/worldscibooks/10.1142/9699 Energy: Sources, Utilization, Legislation, Sustainability, Illinois as Model State], World Sci. Pub. Co.. {{page|year=2016|isbn=9789814704007|pages=}}