Dyfyniad APA

D E Avison,G Fitzgerald. (1993). Information Systems development: Methodologies techniques and tools. Alfred Walter.

Dyfyniad Arddull Chicago

D E Avison,G Fitzgerald. Information Systems Development: Methodologies Techniques and Tools. Alfred Walter, 1993.

Dyfyniad MLA

D E Avison,G Fitzgerald. Information Systems Development: Methodologies Techniques and Tools. Alfred Walter, 1993.

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