APA aipamena

(1997). Four communication skills in English. Đà Nẵng: Nxb. Đà Nẵng.

Chicago Style aipamena

Four Communication Skills in English. Đà Nẵng: Nxb. Đà Nẵng, 1997.

MLA aipamena

Four Communication Skills in English. Đà Nẵng: Nxb. Đà Nẵng, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.