HELLRIEGEL, D. (1992). Management / Don Hellriegel, John W. Slocum. Addison Wesley.
Lua i Stíl Chicago (17ú heag.)HELLRIEGEL, Don. Management / Don Hellriegel, John W. Slocum. Addison Wesley, 1992.
Lua MLA (8ú heag.)HELLRIEGEL, Don. Management / Don Hellriegel, John W. Slocum. Addison Wesley, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.