APA

Latham-Koenig C., Oxenden C. & Seligson P. (2019). English file: elementary student's book. Oxford (Reino Unido): Oxford University Press.

Chicago

Latham-Koenig Christina, Oxenden Clive and Seligson Paul. 2019. English file: elementary student's book. Oxford (Reino Unido): Oxford University Press.

Harvard

Latham-Koenig C., Oxenden C. and Seligson P. (2019). English file: elementary student's book. Oxford (Reino Unido): Oxford University Press.

MLA

Latham-Koenig Christina, Oxenden Clive and Seligson Paul. English file: elementary student's book. Oxford (Reino Unido): Oxford University Press. 2019.