Norman, D. (2013). The design of everyday things. Basic Books.
Chicago Style (17th ed.) ZitazioaNorman, Don. The Design of Everyday Things. New York,USA: Basic Books, 2013.
MLA (9th ed.) ZitazioaNorman, Don. The Design of Everyday Things. Basic Books, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.