APA (7th ed.) Citation

Akman, V., & Hagen, P. J. W. t. (1988). The power of physical representations.

Chicago Style (17th ed.) Citation

Akman, Varol, and Paul J. W. ten Hagen. The Power of Physical Representations. Amsterdam, 1988.

MLA (9th ed.) Citation

Akman, Varol, and Paul J. W. ten Hagen. The Power of Physical Representations. 1988.