Cita APA (7a ed.)
Douglas, E. S., Girimonti, S., & Samuel, J. (2019). C1 train up your skills: Extensive English skills practice. Editorial Tébar Flores.
Cita Chicago Style (17a ed.)
Douglas, Elisabeth S., Silvia Girimonti, y Julia Samuel. C1 Train Up Your Skills: Extensive English Skills Practice. Madrid: Editorial Tébar Flores, 2019.
Cita MLA (9a ed.)
Douglas, Elisabeth S., et al. C1 Train Up Your Skills: Extensive English Skills Practice. Editorial Tébar Flores, 2019.
Precaución: Estas citas no son 100% exactas.