Barker, C. (2003). New Snapshot Pre- Intermediate Language Booster. Pearson Longman.
Chicago Style CitationBarker, Chris. New Snapshot Pre- Intermediate Language Booster. Pearson Longman, 2003.
Cita MLABarker, Chris. New Snapshot Pre- Intermediate Language Booster. Pearson Longman, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.