SILVERSTEIN BARRY. (2007). BEST PRACTICES: MANAGING PEOPLE. HARPER COLLINS PUBLISHERS.
Lua i Stíl Chicago (17ú heag.)SILVERSTEIN BARRY. BEST PRACTICES: MANAGING PEOPLE. NEW YORK: HARPER COLLINS PUBLISHERS, 2007.
Lua MLA (9ú heag.)SILVERSTEIN BARRY. BEST PRACTICES: MANAGING PEOPLE. HARPER COLLINS PUBLISHERS, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.