Citazione Stile APA (7a Edizione)

Avello, I., Brayshaw, D., & Hird, J. (2025). Professional english. Macmillan Education.

Citazione stile Chigago Style (17a edizione)

Avello, Inés, Daniel Brayshaw, e John Hird. Professional English. Madrid: Macmillan Education, 2025.

Citatione MLA (9a ed.)

Avello, Inés, et al. Professional English. Macmillan Education, 2025.