@book{8103,
	author = {Blewitt, John, },
	title = {Understanding sustainable development /},
	publisher = {Routledge, },
	year = {c2015},
	address = {Abingon, Oxon : New York, NY :},
	edition = {2 ed.},
	url = {https://www.cicy.mx/sitios/sib/doctoelectronico/8817.pdf}
}