ZACKS MITCH. (2003). AHEAD OF THE MARKET. HARPER COLLINS PUBLISHERS.
Lua i Stíl Chicago (17ú heag.)ZACKS MITCH. AHEAD OF THE MARKET. NEW YORK: HARPER COLLINS PUBLISHERS, 2003.
Lua MLA (9ú heag.)ZACKS MITCH. AHEAD OF THE MARKET. HARPER COLLINS PUBLISHERS, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.