WILLIAMS, C. (2000). Management. South-Western College publisher.
Lua i Stíl Chicago (17ú heag.)WILLIAMS, Chuck. Management. South-Western College publisher, 2000.
Lua MLA (9ú heag.)WILLIAMS, Chuck. Management. South-Western College publisher, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.