APA (7th ed.) Zitazioa
Treweek, J. (1999). Ecological impact assessment. Blackwell Science.
Chicago Style (17th ed.) Zitazioa
Treweek, Jo. Ecological Impact Assessment. Oxford ; Malden, MA: Blackwell Science, 1999.
MLA (9th ed.) Zitazioa
Treweek, Jo. Ecological Impact Assessment. Blackwell Science, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.