APA aipamena

Quintana, J. (2007). Build up to countdown: (Workbook). Oxford: Oxford University Press.

Chicago Style aipamena

Quintana, Jenny. Build Up to Countdown: (Workbook). Oxford: Oxford University Press, 2007.

MLA aipamena

Quintana, Jenny. Build Up to Countdown: (Workbook). Oxford: Oxford University Press, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.