World Bank. (2008). Sustainable land management sourcebook. World Bank.
Lua i Stíl Chicago (17ú heag.)World Bank. Sustainable Land Management Sourcebook. Washington, DC: World Bank, 2008.
Lua MLA (9ú heag.)World Bank. Sustainable Land Management Sourcebook. World Bank, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.