Citazione Stile APA (7a Edizione)

Douglas, E. S., Girimonti, S., & Samuel, J. (2019). B1 speaking skills: The six, themed modules give you non-stop speaking practice. Editorial Tébar Flores.

Citazione stile Chigago Style (17a edizione)

Douglas, Elisabeth S., Silvia Girimonti, e Julia Samuel. B1 Speaking Skills: The Six, Themed Modules Give You Non-stop Speaking Practice. Madrid, España: Editorial Tébar Flores, 2019.

Citatione MLA (9a ed.)

Douglas, Elisabeth S., et al. B1 Speaking Skills: The Six, Themed Modules Give You Non-stop Speaking Practice. Editorial Tébar Flores, 2019.