APA (7th ed.) Citation

Ericsson, K. A. (2009). Development of professional expertise: Toward measurement of expert performance and design of optimal learning environments. Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Ericsson, Karl Anders. Development of Professional Expertise: Toward Measurement of Expert Performance and Design of Optimal Learning Environments. Cambridge [u.a.]: Cambridge Univ. Press, 2009.

MLA (9th ed.) Citation

Ericsson, Karl Anders. Development of Professional Expertise: Toward Measurement of Expert Performance and Design of Optimal Learning Environments. Cambridge Univ. Press, 2009.