Gaya APA

Heiphetz, A., Woodill, G. (2010). Training and collaboration with virtual worlds : how to create cost-saving, efficient, and engaging programs . Atheneum, New York: HMC.

Gaya MLA

Heiphetz, Alex., Woodill, Gary. "Training and collaboration with virtual worlds : how to create cost-saving, efficient, and engaging programs". Atheneum, New York: HMC, 2010. Text.