APA aipamena

Boyle, M., & Kisslinger, E. (2013). Skillful listening and speaking 3. London: Macmillan.

Chicago Style aipamena

Boyle, Mike, và Ellen Kisslinger. Skillful Listening and Speaking 3. London: Macmillan, 2013.

MLA aipamena

Boyle, Mike, và Ellen Kisslinger. Skillful Listening and Speaking 3. London: Macmillan, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.