Barrall, I. (2006). Market leader: Teacher's resource book. Harlow: Pearson Education.
Trích dẫn kiểu ChicagoBarrall, Irene. Market Leader: Teacher's Resource Book. Harlow: Pearson Education, 2006.
Deismireacht MLABarrall, Irene. Market Leader: Teacher's Resource Book. Harlow: Pearson Education, 2006.
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