@book{137108,
	author = {Gas Processors Association, GPA},
	title = {Sitio Web Institucional},
	publisher = {Gas Processors Association, GPA},
	year = {2001},
	address = {Tulsa, Oklahoma},
	note = {Sitio Web visitado en julio de 2002. ; Navegadores de Internet},
	url = {http://www.gasprocessors.com}
}