Fellag, L. R., Boyd, F., & Numrich, C. (2006). NorthStar: Building skills for the TOEFL iBT Advanced. Teacher's manual with ETS scoring guide. White Plains, NY: Pearson Longman.
Citación estilo ChicagoFellag, Linda Robinson, Frances Boyd, y Carol Numrich. NorthStar: Building Skills for the TOEFL IBT Advanced. Teacher's Manual With ETS Scoring Guide. White Plains, NY: Pearson Longman, 2006.
Cita MLAFellag, Linda Robinson, Frances Boyd, y Carol Numrich. NorthStar: Building Skills for the TOEFL IBT Advanced. Teacher's Manual With ETS Scoring Guide. White Plains, NY: Pearson Longman, 2006.
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