Frenzel, C. W. (1992). Management Of Information Technology Carroll W Frenzel. Boyd & Fraser.
Lua i Stíl Chicago (17ú heag.)Frenzel, Carrol W. Management Of Information Technology Carroll W Frenzel. Boyd & Fraser, 1992.
Lua MLA (8ú heag.)Frenzel, Carrol W. Management Of Information Technology Carroll W Frenzel. Boyd & Fraser, 1992.
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