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Lua i Stíl Chicago (17ú heag.)SCHAEFER, Richard T. Sociology Richard T. Schaefer; In Collabration With Robert P. Lamn. McGraw-Hill, 1989.
Lua MLA (8ú heag.)SCHAEFER, Richard T. Sociology Richard T. Schaefer; In Collabration With Robert P. Lamn. McGraw-Hill, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.