@book{26550,
	author = {Dougherty, James E. and Pfaltzgraff, Robert L.},
	title = {Teorías en pugna :},
	publisher = {Grupo Editor Latinoamericano,},
	year = {1993.},
	series = {Col.Estudios Internacionales / Grupo Editor Latinoamericano},
	address = {Buenos Aires :}
}