(1995). Global Busines. The Dryden Press.
Lua i Stíl Chicago (17ú heag.)Global Busines. The Dryden Press, 1995.
Lua MLA (8ú heag.)Global Busines. The Dryden Press, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)