Hill, C. W. (2008). Principles of management Charles W.L. Hill, Steven L. McShane. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Hill, Charles W.L. Principles of Management Charles W.L. Hill, Steven L. McShane. McGraw-Hill, 2008.
Lua MLA (8ú heag.)Hill, Charles W.L. Principles of Management Charles W.L. Hill, Steven L. McShane. McGraw-Hill, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.