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Lua i Stíl Chicago (17ú heag.)Abdul-mohsen, ashraf a. Economic Efficiency and Income Distribution Evaluation of Toxics and Dam Removal Using Contingent Valuation. 2005.
Lua MLA (9ú heag.)Abdul-mohsen, ashraf a. Economic Efficiency and Income Distribution Evaluation of Toxics and Dam Removal Using Contingent Valuation. 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.