Curtis, G. (1998). Business information systems: Analysis design and practice. Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)Curtis, Graham. Business Information Systems: Analysis Design and Practice. Harlow, England: Addison-Wesley, 1998.
Lua MLA (9ú heag.)Curtis, Graham. Business Information Systems: Analysis Design and Practice. Addison-Wesley, 1998.
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