@book{136756,
	author = {International Petroleum Industry Environmental Conservation Association, IPIECA and International Association of Oil & Gas Producers},
	title = {The oil and gas industry from Rio to Johannesburg and beyond},
	publisher = {International Petroleum Industry Environmental Conservation Association, IPIECA},
	year = {2002},
	address = {London},
	note = {Sitio visitado en junio de 2002. ; Navegadores de Internet ; Adobe Acrobat (PDF)},
	url = {http://www.ipieca.org/downloads/WSSD.pdf}
}