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Lua i Stíl Chicago (17ú heag.)Oliver, Gordon. Marketing Today. london: prentice-hall international INC, 1980.
Lua MLA (9ú heag.)Oliver, Gordon. Marketing Today. prentice-hall international INC, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.