Cita APA

Beaumont, J., Boyd, F., & Numrich, C. (2006). NorthStar: Building skills for the TOEFL iBT Intermediate. Teacher's manual . ETS practice sets 1-4. Benchmark and practice responses. White Plains, NY: Pearson Longman.

Citación estilo Chicago

Beaumont, John, Frances Boyd, y Carol Numrich. NorthStar: Building Skills for the TOEFL IBT Intermediate. Teacher's Manual . ETS Practice Sets 1-4. Benchmark and Practice Responses. White Plains, NY: Pearson Longman, 2006.

Cita MLA

Beaumont, John, Frances Boyd, y Carol Numrich. NorthStar: Building Skills for the TOEFL IBT Intermediate. Teacher's Manual . ETS Practice Sets 1-4. Benchmark and Practice Responses. White Plains, NY: Pearson Longman, 2006.