Robbins, S. P. (1990). Management (3rd.ed.). Prentice-Hall..
Lua i Stíl Chicago (17ú heag.)Robbins, Stephen P. Management. 3rd.ed. Englewood Cliffs: Prentice-Hall., 1990.
Lua MLA (9ú heag.)Robbins, Stephen P. Management. 3rd.ed. Prentice-Hall., 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.