Lott, R. (1983). Basic with business applications: Vol 3. Grolier.
Lua i Stíl Chicago (17ú heag.)Lott, Richard. Basic with Business Applications: Vol 3. Englwwood Cliffs: Grolier, 1983.
Lua MLA (9ú heag.)Lott, Richard. Basic with Business Applications: Vol 3. Grolier, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.