BURCH, J. G. (1986). Information Systems Theory And Practice John G. Burch And Gary Grudnitski. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)BURCH, John G. Information Systems Theory And Practice John G. Burch And Gary Grudnitski. John Wiley & Sons, 1986.
Lua MLA (8ú heag.)BURCH, John G. Information Systems Theory And Practice John G. Burch And Gary Grudnitski. John Wiley & Sons, 1986.
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