References here are using the Chicago Manual Style. http://www.chicagomanualofstyle.org/tools_citationguide.html
Bailey, Robert W. Human Performance Engineering (3rd ed.): Designing High Quality Professional User Interfaces for Computer Products, Applications and Systems. Upper Saddle River: Prentice-Hall, 1996, 49-155.
Norman, Donald A. The Design of Everyday Things. Basic Books: New York, 1988, 1-53.