.Abbasi,,S.A. (1998). Environment everyone: Bitter-sweet writings on environment. Discovery.
Chicago Style (17th ed.) Zitazioa.Abbasi,,S.A. Environment Everyone: Bitter-sweet Writings on Environment. New Delhi: Discovery, 1998.
MLA (9th ed.) Zitazioa.Abbasi,,S.A. Environment Everyone: Bitter-sweet Writings on Environment. Discovery, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.