@book{149984,
	author = {Schenk, Christopher J. and International Gas Union, IGU and World Gas Conference (22nd. : 2003 jun 1-5 : Tokyo) and International Gas Union, IGU},
	title = {Geologic definition and resource assessment of continuous (unconventional) gas accumulations in the United States},
	note = {Disponible en CD en formato PDF}
}