Dyfyniad APA

Norman, D. A. (2013). The design of everyday things (Revised and expanded edition.). Basic Books.

Dyfyniad Arddull Chicago

Norman, Donald A. The Design of Everyday Things. Revised and expanded edition. New York, New York: Basic Books, 2013.

Dyfyniad MLA

Norman, Donald A. The Design of Everyday Things. Revised and expanded edition. Basic Books, 2013.

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