Debenham, J. K. (1989). Knowledge systems design. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Debenham, J. K. Knowledge Systems Design. New York ; Sydney: Prentice Hall, 1989.
Lua MLA (8ú heag.)Debenham, J. K. Knowledge Systems Design. Prentice Hall, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.