@book{71820,
	author = {Emery, E David},
	title = {Principios de Economía  microeconomía},
	publisher = {Carvajal},
	year = {1988},
	series = {Compendios Universitarios},
	address = {Bogotá (Colombia)},
	note = {Donación Dr. Álvaro Daza Roa.}
}