Zynga Inc & Mattrick, D. Zynga names Microsoft Xbox head as CEO. The Philippine Star.
Lua i Stíl Chicago (17ú heag.)Zynga Inc agus Don Mattrick. "Zynga Names Microsoft Xbox Head as CEO." The Philippine Star .
Lua MLA (9ú heag.)Zynga Inc agus Don Mattrick. "Zynga Names Microsoft Xbox Head as CEO." The Philippine Star, .
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