@book{7785,
	author = {Tejerina Rios, Oscar and Convenio Andrés Bello},
	title = {Las actividades científicas juveniles y la cooperación multilateral :},
	publisher = {Alvaro Campo Cabal & Henry Yesid Bernal,},
	year = {1993.},
	series = {Ciencia y tecnología},
	address = {Bogotá :}
}