University of Cambridge. (2011). Cambridge preliminary English test 6 with answers: Examination papers from University of Cambridge ESOL examinations. Việt Nam: Fahasa Printing Factory.
Citação norma ChicagoUniversity of Cambridge. Cambridge Preliminary English Test 6 With Answers: Examination Papers From University of Cambridge ESOL Examinations. Việt Nam: Fahasa Printing Factory, 2011.
Citação norma MLAUniversity of Cambridge. Cambridge Preliminary English Test 6 With Answers: Examination Papers From University of Cambridge ESOL Examinations. Việt Nam: Fahasa Printing Factory, 2011.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.