@book{14159,
	author = {United Nations Educational, Scientific and Cultural Organization. Oficina Regional de Ciencia y Tecnología para América Latina y el Caribe and Conferencia Interamericana},
	title = {Educación matemática en las américas},
	publisher = {United Nations Educational, Scientific and Cultural Organization, },
	year = {1979.},
	address = {Montevideo : }
}