@book{137076,
	author = {American Association of Petroleum Geologists, AAPG},
	title = {Sitio Web institucional},
	publisher = {American Association of Petroleum Geologists, AAPG},
	year = {2002},
	address = {United States of America},
	note = {Sitio visitado en julio de 2002. ; Navegadores de Internet},
	url = {http://www.aapg.org/}
}