APA aipamena

Frankel, I., & Irene Frankel. (1998). Gateways: Integrated english. New York, NY, USA: Oxford University Press.

Chicago Style aipamena

Frankel, Irene, và Irene Frankel. Gateways: Integrated English. New York, NY, USA: Oxford University Press, 1998.

MLA aipamena

Frankel, Irene, và Irene Frankel. Gateways: Integrated English. New York, NY, USA: Oxford University Press, 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.