@book{6167,
	author = {González Macías, María del Carmen},
	title = {PEMEX y la salud ambiental de la Sonda de Campeche, México /},
	publisher = {Battelle Memorial Institute, },
	year = {c2009},
	address = {México :},
	url = {https://www.cicy.mx/sitios/sib/doctoelectronico/6662.pdf}
}