Robbins, S. P. (1999). Management. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Robbins, Stephen P. Management. Prentice-Hall, 1999.
Lua MLA (8ú heag.)Robbins, Stephen P. Management. Prentice-Hall, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.