Harrison, R. New Headway. Oxford: OXFORD University Press, 2006- 978-0-19-471558-4.
Harrison, R. New Headway. Oxford: OXFORD University Press, 2006- 978-0-19-471558-4.
Harrison, R. (2006-) New Headway, Oxford: OXFORD University Press 978-0-19-471558-4.
Harrison, R. (2006-). New Headway. Level 1- Academic Skills - Reading, Writing and Study Skills. Oxford: OXFORD University Press,.
Harrison R. New Headway: Level 1- Academic Skills - Reading, Writing and Study Skills. Oxford: OXFORD University Press; 2006-. ISBN: 978-0-19-471558-4.