Sugarland (Musical group). (2010). The incredible machine. Mercury Nashville Records.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSugarland (Musical group). The Incredible Machine. Nashville, TN: Mercury Nashville Records, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSugarland (Musical group). The Incredible Machine. Mercury Nashville Records, 2010.
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