Alexander, L. (1991). New Concept English: Practice and Progress. London: Longman.
Chicago Style citaatAlexander, L.g. New Concept English: Practice and Progress. London: Longman, 1991.
MLA citatieAlexander, L.g. New Concept English: Practice and Progress. London: Longman, 1991.
Let op: Deze citaties zijn niet altijd 100% accuraat.