WGBH Video (Firm) & Palfreman, J. (2007). Global warming: What's up with the weather? (Full screen (4 x 3 ) presentation.). WGBH Boston Video.
Cita Chicago Style (17a ed.)WGBH Video (Firm) y Jon Palfreman. Global Warming: What's Up with the Weather? Full screen (4 x 3 ) presentation. [United States]: WGBH Boston Video, 2007.
Cita MLA (8a ed.)WGBH Video (Firm) y Jon Palfreman. Global Warming: What's Up with the Weather? Full screen (4 x 3 ) presentation. WGBH Boston Video, 2007.
Precaución: Estas citas no son 100% exactas.