Courtney, J. F., Jr, & Paradice, D. B. (1988). Database systems for management. Times Mirror.
Lua i Stíl Chicago (17ú heag.)Courtney, James Forrest, Jr, agus David B. Paradice. Database Systems for Management. St. Louis: Times Mirror, 1988.
Lua MLA (9ú heag.)Courtney, James Forrest, Jr, agus David B. Paradice. Database Systems for Management. Times Mirror, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.