WGBH Video (Firm) & Palfreman, J. (2007). Global warming: What's up with the weather? (Full screen (4 x 3 ) presentation.). WGBH Boston Video.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWGBH Video (Firm) और Jon Palfreman. Global Warming: What's Up with the Weather? Full screen (4 x 3 ) presentation. [United States]: WGBH Boston Video, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWGBH Video (Firm) और Jon Palfreman. Global Warming: What's Up with the Weather? Full screen (4 x 3 ) presentation. WGBH Boston Video, 2007.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.