APA (7th ed.) Citation

Coper, A., Reimann, R., Cronin, D., & Noessel, C. About face: The essentials of interaction design (4a ed.).

Chicago Style (17th ed.) Citation

Coper, Alan, Robert Reimann, David Cronin, and Chirstopher Noessel. About Face: The Essentials of Interaction Design. 4a ed.

MLA (8th ed.) Citation

Coper, Alan, et al. About Face: The Essentials of Interaction Design. 4a ed.