REN21. Renewables , global status report 2009.
Lua i Stíl Chicago (17ú heag.)REN21. Renewables , Global Status Report 2009.
Lua MLA (9ú heag.)REN21. Renewables , Global Status Report 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.