Karl-Göran Mäler, J. R. V. (2005). Economywide and International Environmental Issues. ELSEVIER.
Lua i Stíl Chicago (17ú heag.)Karl-Göran Mäler, Jeffrey R. Vincent. Economywide and International Environmental Issues. ELSEVIER, 2005.
Lua MLA (8ú heag.)Karl-Göran Mäler, Jeffrey R. Vincent. Economywide and International Environmental Issues. ELSEVIER, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.