Cita APA (7a ed.)

Travis, D. (2003). E-commerce usability: Tools and techniques to perfect the on-line experience. Taylor & Francis.

Cita Chicago Style (17a ed.)

Travis, David. E-commerce Usability: Tools and Techniques to Perfect the On-line Experience. New York: Taylor & Francis, 2003.

Cita MLA (9a ed.)

Travis, David. E-commerce Usability: Tools and Techniques to Perfect the On-line Experience. Taylor & Francis, 2003.