Citazione Stile APA (7a Edizione)

Douglas, E. S., Girimonti, S., & Samuel, J. (2019). B1 skills training: The six, themed units give you extensive skills practice to up your level or prepare your exams. Editorial Tébar Flores.

Citazione stile Chigago Style (17a edizione)

Douglas, Elisabeth S., Silvia Girimonti, e Julia Samuel. B1 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.

Citatione MLA (9a ed.)

Douglas, Elisabeth S., et al. B1 Skills Training: The Six, Themed Units Give You Extensive Skills Practice to Up Your Level or Prepare Your Exams. Editorial Tébar Flores, 2019.