Examination papers from University of Cambridge ESOL Examinations. (2010). Cambridge Preliminary English test for schools 1 with answers. New York: Cambridge university press.
Παραπομπή Chicago StyleExamination papers from University of Cambridge ESOL Examinations. Cambridge Preliminary English Test for Schools 1 With Answers. New York: Cambridge university press, 2010.
Παραπομπή MLAExamination papers from University of Cambridge ESOL Examinations. Cambridge Preliminary English Test for Schools 1 With Answers. New York: Cambridge university press, 2010.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.