Ziglar, Z. (2001). You can reach the top. Magna.
Lua i Stíl Chicago (17ú heag.)Ziglar, Zig. You Can Reach the Top. Mumbai: Magna, 2001.
Lua MLA (9ú heag.)Ziglar, Zig. You Can Reach the Top. Magna, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.