Douglas, E. S., Girimonti, S., & Samuel, J. (2019). B2 speaking skills: The six, themed modules give you non-stop speaking practice. Editorial Tébar Flores.
Chicago Style (17. basım) AtıfDouglas, Elisabeth S., Silvia Girimonti, ve Julia Samuel. B2 Speaking Skills: The Six, Themed Modules Give You Non-stop Speaking Practice. Madrid, España: Editorial Tébar Flores, 2019.
MLA (9th ed.) AtıfDouglas, Elisabeth S., et al. B2 Speaking Skills: The Six, Themed Modules Give You Non-stop Speaking Practice. Editorial Tébar Flores, 2019.
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