Norman, D. A. (2013). The design of everyday things (Revised and expanded edition.). Basic Books.
Chicago-viite (17. p.)Norman, Donald A. The Design of Everyday Things. Revised and expanded edition. New York, New York: Basic Books, 2013.
MLA-viite (9. p.)Norman, Donald A. The Design of Everyday Things. Revised and expanded edition. Basic Books, 2013.
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