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Lua i Stíl Chicago (17ú heag.)South Africa. Dept. of Health. The Use of Alcohol by Young People: Moderation or Dependence. Pretoria: Dept. of Health, 1979.
Lua MLA (8ú heag.)South Africa. Dept. of Health. The Use of Alcohol by Young People: Moderation or Dependence. Dept. of Health, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.