Cita APA (7a ed.)
Koenig-Latham, C., Oxenden, C., & Chomacki, K. (2023). English File: Upper Intermediate Student's Book with Online Practice - 4th Edition (4. vyd.). Oxford University Press.
Cita Chicago Style (17a ed.)
Koenig-Latham, Christina, Clive Oxenden, y Kate Chomacki. English File: Upper Intermediate Student's Book with Online Practice - 4th Edition. 4. vyd. Oxford: Oxford University Press, 2023.
Cita MLA (9a ed.)
Koenig-Latham, Christina, et al. English File: Upper Intermediate Student's Book with Online Practice - 4th Edition. 4. vyd. Oxford University Press, 2023.
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