(1988). Marketing Classics. Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Marketing Classics. Allyn and Bacon, 1988.
Lua MLA (8ú heag.)Marketing Classics. Allyn and Bacon, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.