CASE ALBERT F. (1986). INFORMATION SYSTEMS DEVELOPMENT. PRENTICE -HALL INTERNATIONAL, INC.
Lua i Stíl Chicago (17ú heag.)CASE ALBERT F. INFORMATION SYSTEMS DEVELOPMENT. NEW JERSEY: PRENTICE -HALL INTERNATIONAL, INC, 1986.
Lua MLA (9ú heag.)CASE ALBERT F. INFORMATION SYSTEMS DEVELOPMENT. PRENTICE -HALL INTERNATIONAL, INC, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.