DALE ERNEST. (1988). MANAGEMENT: THEORY AND PRACTICE (4.). MCGRAW-HILL.
Lua i Stíl Chicago (17ú heag.)DALE ERNEST. MANAGEMENT: THEORY AND PRACTICE. 4. NEW YORK: MCGRAW-HILL, 1988.
Lua MLA (9ú heag.)DALE ERNEST. MANAGEMENT: THEORY AND PRACTICE. 4. MCGRAW-HILL, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.