Ritter, F. E., Baxter, G. D., & Churchill, E. F. (2014). Foundations for Designing User-Centered Systems: What System Designers Need to Know about People. Springer London : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)Ritter, Frank E., Gordon D. Baxter, και Elizabeth F. Churchill. Foundations for Designing User-Centered Systems: What System Designers Need to Know About People. London: Springer London : Imprint: Springer, 2014.
Παραπομπή σε μορφή MLA (8th εκδ.)Ritter, Frank E., et al. Foundations for Designing User-Centered Systems: What System Designers Need to Know About People. Springer London : Imprint: Springer, 2014.
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