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Lua i Stíl Chicago (17ú heag.)MARKS JOSEPH G. OPERATIONS MANAGEMENT: THEORY AND PRACTICE. 3. NEW YORK: MCGRAW-HILL, 1987.
Lua MLA (9ú heag.)MARKS JOSEPH G. OPERATIONS MANAGEMENT: THEORY AND PRACTICE. 3. MCGRAW-HILL, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.