Pentz, M. (2019). The sound and the glory: How the Seattle Sounders showed Major League Soccer how to win over America. ECW Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPentz, Matt. The Sound and the Glory: How the Seattle Sounders Showed Major League Soccer How to Win over America. Toronto: ECW Press, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPentz, Matt. The Sound and the Glory: How the Seattle Sounders Showed Major League Soccer How to Win over America. ECW Press, 2019.
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