(2010). Cambridge first certificate in english 4 with answers: Official examination papers from University of Cambridge ESOL examinations. Cambridge University Press.
Chicago-referens (17:e uppl.)Cambridge First Certificate in English 4 with Answers: Official Examination Papers from University of Cambridge ESOL Examinations. Cambridge: Cambridge University Press, 2010.
MLA-referens (9:e uppl.)Cambridge First Certificate in English 4 with Answers: Official Examination Papers from University of Cambridge ESOL Examinations. Cambridge University Press, 2010.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.