APA aipamena

Gude, K., & Kathy Gude. (2001). Matrix: Upper-intermediate Workbook. Oxford: Oxford University Press.

Chicago Style aipamena

Gude, Kathy, và Kathy Gude. Matrix: Upper-intermediate Workbook. Oxford: Oxford University Press, 2001.

MLA aipamena

Gude, Kathy, và Kathy Gude. Matrix: Upper-intermediate Workbook. Oxford: Oxford University Press, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.