@book{80655,
	author = {Hussain, Imtiaz.},
	title = {Environmentalism, free trade and regionalism in theoretical perspective :},
	publisher = {Centro de Investigación y Docencia Económicas. División de Estudios Internacionales,},
	year = {1996.},
	series = {Documento de trabajo},
	address = {México, D.F. :}
}