Windfall Films (Firm), WGBH Video (Firm), Dugan, D., Ross, N., & Shachtman, T. (2007). Absolute zero. WGBH Boston Video.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWindfall Films (Firm), WGBH Video (Firm), David Dugan, Neil Ross, और Tom Shachtman. Absolute Zero. [Boston]: WGBH Boston Video, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWindfall Films (Firm), et al. Absolute Zero. WGBH Boston Video, 2007.
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