University of Cambridge. (2010). Cambridge First Certificate in English 4 with answers: Official examination papers from University of Cambridge ESOL examinations. New York: Cambridge university Press.
Styl cytowania ChicagoUniversity of Cambridge. Cambridge First Certificate in English 4 With Answers: Official Examination Papers From University of Cambridge ESOL Examinations. New York: Cambridge university Press, 2010.
Styl cytowania MLAUniversity of Cambridge. Cambridge First Certificate in English 4 With Answers: Official Examination Papers From University of Cambridge ESOL Examinations. New York: Cambridge university Press, 2010.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..