WILLIAMS STEVE W. (2002). MAKING BETTER BUSINESS DECISIONS. RESPONSE BOOKS.
Lua i Stíl Chicago (17ú heag.)WILLIAMS STEVE W. MAKING BETTER BUSINESS DECISIONS. NEW DELHI: RESPONSE BOOKS, 2002.
Lua MLA (9ú heag.)WILLIAMS STEVE W. MAKING BETTER BUSINESS DECISIONS. RESPONSE BOOKS, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.