MLA
Heeter, Carrie, et al. "Game Design and the Challenge-Avoiding, Self-Validator Player Type." IJGCMS vol.1, no.3 2009: pp.53-67. http://doi.org/10.4018/jgcms.2009070104
APA
Heeter, C., Magerko, B., Medler, B., & Fitzgerald, J. (2009). Game Design and the Challenge-Avoiding, Self-Validator Player Type. International Journal of Gaming and Computer-Mediated Simulations (IJGCMS), 1(3), 53-67. http://doi.org/10.4018/jgcms.2009070104
Chicago
Heeter, Carrie, et al. "Game Design and the Challenge-Avoiding, Self-Validator Player Type," International Journal of Gaming and Computer-Mediated Simulations (IJGCMS) 1, no.3: 53-67. http://doi.org/10.4018/jgcms.2009070104
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