University of Cambridge. (2011). Cambridge key English test 4 with answers: Examination papers from University of Cambridge ESOL examinations: English for Speakers of Other Languages. Việt Nam: Fahasa Printing Factory.
Chicago ZitierstilUniversity of Cambridge. Cambridge Key English Test 4 With Answers: Examination Papers From University of Cambridge ESOL Examinations: English for Speakers of Other Languages. Việt Nam: Fahasa Printing Factory, 2011.
MLA ZitierstilUniversity of Cambridge. Cambridge Key English Test 4 With Answers: Examination Papers From University of Cambridge ESOL Examinations: English for Speakers of Other Languages. Việt Nam: Fahasa Printing Factory, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.