Cite
MLA Citation
Unknown. Social game design : monetization methods and mechanics. Waltham, MA : Morgan Kaufmann, 2012. http://access.bl.uk/ark:/81055/vdc_100045254230.0x000001
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Unknown. Social game design : monetization methods and mechanics. Waltham, MA : Morgan Kaufmann, 2012. http://access.bl.uk/ark:/81055/vdc_100045254230.0x000001