Metzelaar, L. C. (1987). Learning to use lotus 1-2-3. Benjamin/Cummings.
Lua i Stíl Chicago (17ú heag.)Metzelaar, Lawrence C. Learning to Use Lotus 1-2-3. Menlo Park, Calif: Benjamin/Cummings, 1987.
Lua MLA (9ú heag.)Metzelaar, Lawrence C. Learning to Use Lotus 1-2-3. Benjamin/Cummings, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.