Cameron, S. (2008). Hemispheres 2. New York, United States: McGraw-Hill ESL/ELT.
Chicago Style aipamenaCameron, Scott. Hemispheres 2. New York, United States: McGraw-Hill ESL/ELT, 2008.
MLA aipamenaCameron, Scott. Hemispheres 2. New York, United States: McGraw-Hill ESL/ELT, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.