Gaya APA

Clark, R, C., John, I, N, F, I, S. (2006). Efficiency in learning: evidence-based guidelines to manage cognitive load . San Francisco: San Francisco: Pfeiffer, 2006.

Gaya MLA

Clark, Rith, Colvin., John, I., Nguyen,, Frank, II., Sweller,. "Efficiency in learning: evidence-based guidelines to manage cognitive load". San Francisco: San Francisco: Pfeiffer, 2006, 2006. Text.