Dyfyniad APA

Langer, A. M. (2008). Analysis and design of information systems (3rd ed.). Springer - Verlag.

Dyfyniad Arddull Chicago

Langer, Arthur M. Analysis and Design of Information Systems. 3rd ed. London: Springer - Verlag, 2008.

Dyfyniad MLA

Langer, Arthur M. Analysis and Design of Information Systems. 3rd ed. Springer - Verlag, 2008.

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