APA aipamena

Townsend,, A. (2010). Air pollution. Apple Academics.

Chicago Style aipamena

Townsend,, Amy. Air Pollution. Apple Academics, 2010.

MLA aipamena

Townsend,, Amy. Air Pollution. Apple Academics, 2010.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.