APA (7th ed.) Citation

Ballagas, R., Kuntze, A., & Walz, S. P. (2008). Gaming tourism: Lessons from evaluating REXplorer, a pervasive game for tourists.

Chicago Style (17th ed.) Citation

Ballagas, R., A. Kuntze, and Steffen P. Walz. Gaming Tourism: Lessons from Evaluating REXplorer, a Pervasive Game for Tourists. 2008.

MLA (9th ed.) Citation

Ballagas, R., et al. Gaming Tourism: Lessons from Evaluating REXplorer, a Pervasive Game for Tourists. 2008.