APA (7th ed.) Zitazioa
(2001). Valuation of biodiversity benefits: Selected studies. OECD Publications Services.
Chicago Style (17th ed.) Zitazioa
Valuation of Biodiversity Benefits: Selected Studies. Paris, France: OECD Publications Services, 2001.
MLA (9th ed.) Zitazioa
Valuation of Biodiversity Benefits: Selected Studies. OECD Publications Services, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.