APA (7th ed.) Zitazioa
McEldowney, S. (1993). Pollution: Ecology and biotreatment. Longman.
Chicago Style (17th ed.) Zitazioa
McEldowney, Sharron. Pollution: Ecology and Biotreatment. London: Longman, 1993.
MLA (9th ed.) Zitazioa
McEldowney, Sharron. Pollution: Ecology and Biotreatment. Longman, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.