APA-viite (7. p.)
Darby, J. (2012). Wizards and warriors: Massively multiplayer online game creation. Course Technology PTR.
Chicago-viite (17. p.)
Darby, Jason. Wizards and Warriors: Massively Multiplayer Online Game Creation. Boston, Mass.: Course Technology PTR, 2012.
MLA-viite (9. p.)
Darby, Jason. Wizards and Warriors: Massively Multiplayer Online Game Creation. Course Technology PTR, 2012.
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