@book{33511,
	author = {Pool, John Charles. and Bernal M., Armando, },
	title = {Cómo comprender los conceptos básicos de la economía / },
	publisher = {Grupo Editorial Norma, },
	year = {1989.},
	series = {Gerencia},
	address = {Bogotá : },
	edition = {Editor Armando Bernal M.}
}