Cita APA (7th ed.)

Cambrigde University Press. (2020). B2 First 4 Student's Book with Answers: Authentic Practice Tests with resource bank. Cambridge University Press.

Cita Chicago (17th ed.)

Cambrigde University Press. B2 First 4 Student's Book with Answers: Authentic Practice Tests with Resource Bank. [Lugar no identificado]: Cambridge University Press, 2020.

Cita MLA (9th ed.)

Cambrigde University Press. B2 First 4 Student's Book with Answers: Authentic Practice Tests with Resource Bank. Cambridge University Press, 2020.