Burch, J. (1989). Information Systems Theory And Practice John Burch. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Burch, John. Information Systems Theory And Practice John Burch. John Wiley & Sons, 1989.
Lua MLA (8ú heag.)Burch, John. Information Systems Theory And Practice John Burch. John Wiley & Sons, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.