@book{3813,
	author = {Archer, Margaret  and Nolan-Woods, Enid },
	title = {Practice tests for proficiency-First Series / },
	publisher = {Nelson, },
	year = {1979},
	address = {Sunbury-on-Thames,Middlesex, England : },
	edition = {1 ed.},
	note = {Conjunto de tests para los exámenes de inglés para estudiantes extranjerosen la Universidad de Cambridge}
}