APA (7th ed.) Citation

Greenberg, S., Carpendale, S., Marquardt, N., & Buxton, B. (2012). Sketching User Experiences: The Workbook.

Chicago Style (17th ed.) Citation

Greenberg, Saul, Sheelagh Carpendale, Nicolai Marquardt, and Bill Buxton. Sketching User Experiences: The Workbook. 2012.

MLA (9th ed.) Citation

Greenberg, Saul, et al. Sketching User Experiences: The Workbook. 2012.