Biow, L. (1988). Quattro: The professional spreadsheet made easy. Borland-Osborne/McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Biow, Lisa. Quattro: The Professional Spreadsheet Made Easy. [Berkeley, Calif.]: Borland-Osborne/McGraw-Hill, 1988.
Lua MLA (9ú heag.)Biow, Lisa. Quattro: The Professional Spreadsheet Made Easy. Borland-Osborne/McGraw-Hill, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.