@book{18631,
	author = {Lucantoni, Peter},
	title = {Teaching and assessing skill in english as a second language},
	publisher = {University Press},
	year = {2002},
	series = {Cambridge international examinations. Professional development for teachers},
	address = {Cambridge},
	edition = {1ª ed.},
	note = {Contiene actividades de aprendizaje, glosario, direcciones de internet}
}