@book{149059,
	author = {Thibault, Alain and International Gas Union and International Gas Union},
	title = {Operation and maintenance of gas distribution networks},
	publisher = {International Gas Union, IGU},
	year = {2001},
	address = {[s.l.]},
	note = {Navegadores de Internet ; Adobe Acrobat (PDF)},
	url = {http://www.igu.org/database/2003database/China%20Gas%202001/thibault.pdf}
}