APA aipamena

Hartmann, P. (2007). Interactions 2: Reading CD. New York: McGraw Hill.

Chicago Style aipamena

Hartmann, Pamela. Interactions 2: Reading CD. New York: McGraw Hill, 2007.

MLA aipamena

Hartmann, Pamela. Interactions 2: Reading CD. New York: McGraw Hill, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.