Examination papers from University of Cambridge ESOL Examinations: English for speakers of other langusges. (2007). Cambridge Preliminary English test 4 with answers. New York: Cambridge university press.
Trích dẫn kiểu ChicagoExamination papers from University of Cambridge ESOL Examinations: English for speakers of other langusges. Cambridge Preliminary English Test 4 With Answers. New York: Cambridge university press, 2007.
Deismireacht MLAExamination papers from University of Cambridge ESOL Examinations: English for speakers of other langusges. Cambridge Preliminary English Test 4 With Answers. New York: Cambridge university press, 2007.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.