APA (7th ed.) Citation

Clark, R. C., Nguyen, F., & Sweller, J. (2006). Efficiency in learning: Evidence-based guidelines to manage cognitive load. Pfeiffer.

Chicago Style (17th ed.) Citation

Clark, Ruth Colvin, Frank Nguyen, and John Sweller. Efficiency in Learning: Evidence-based Guidelines to Manage Cognitive Load. San Francisco: Pfeiffer, 2006.

MLA (8th ed.) Citation

Clark, Ruth Colvin, et al. Efficiency in Learning: Evidence-based Guidelines to Manage Cognitive Load. Pfeiffer, 2006.