APA (7th ed.) Citation

Lehmann, T., & Ifenthaler, D. (2011). Preactional self-regulation as a tool for successful problem solving and learning.

Chicago Style (17th ed.) Citation

Lehmann, T., and Dirk Ifenthaler. Preactional Self-regulation as a Tool for Successful Problem Solving and Learning. 2011.

MLA (9th ed.) Citation

Lehmann, T., and Dirk Ifenthaler. Preactional Self-regulation as a Tool for Successful Problem Solving and Learning. 2011.

Warning: These citations may not always be 100% accurate.