Douglas, E. S., Girimonti, S., & Samuel, J. (2019). B2 skills training: The six, themed units give you extensive skills practice to up your level or prepare your exams. Editorial Tébar Flores.
Chicago Style (17. basım) AtıfDouglas, Elisabeth S., Silvia Girimonti, ve Julia Samuel. B2 Skills Training: The Six, Themed Units Give You Extensive Skills Practice to Up Your Level or Prepare Your Exams. Madrid, España: Editorial Tébar Flores, 2019.
MLA (9th ed.) AtıfDouglas, Elisabeth S., et al. B2 Skills Training: The Six, Themed Units Give You Extensive Skills Practice to Up Your Level or Prepare Your Exams. Editorial Tébar Flores, 2019.
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