APA (7th ed.) Citation

Sampson, D. (2011). 3D virtual worlds in education and training.

Chicago Style (17th ed.) Citation

Sampson, Demetrios. 3D Virtual Worlds in Education and Training. 2011.

MLA (9th ed.) Citation

Sampson, Demetrios. 3D Virtual Worlds in Education and Training. 2011.

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