Cita APA (7a ed.)

Wood, I., & Pile, l. (2001). Pass Cambridge BEC Higher. Summertown Publishing.

Cita Chicago Style (17a ed.)

Wood, Ian, y louse Pile. Pass Cambridge BEC Higher. Oxford: Summertown Publishing, 2001.

Cita MLA (8a ed.)

Wood, Ian, y louse Pile. Pass Cambridge BEC Higher. Summertown Publishing, 2001.