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Lua i Stíl Chicago (17ú heag.)FREEMAN-BELL, Gail. Management In Engineering. Prentice-Hall, 1996.
Lua MLA (8ú heag.)FREEMAN-BELL, Gail. Management In Engineering. Prentice-Hall, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.