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Lua i Stíl Chicago (17ú heag.)SCHAEFER RICHARD T. SOCIOLOGY: A BRIEF INTRODUCTION. NEW YORK: MCGRAW-HILL, 1994.
Lua MLA (9ú heag.)SCHAEFER RICHARD T. SOCIOLOGY: A BRIEF INTRODUCTION. MCGRAW-HILL, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.