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Lua i Stíl Chicago (17ú heag.)Smith, Robert. The Link Between Health, Social Issues, and Secondary Education: Life Skills, Health, and Civic Education. Washington, D.C.: World Bank, 2007.
Lua MLA (9ú heag.)Smith, Robert. The Link Between Health, Social Issues, and Secondary Education: Life Skills, Health, and Civic Education. World Bank, 2007.