Greenpeace Foundation & Mettler, P. (2010). Petropolis: Aerial perspectives on the Alberta tar sands. Distributed in Canada by Mongrel Media ; Métropole Films Distribution.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGreenpeace Foundation और Peter Mettler. Petropolis: Aerial Perspectives on the Alberta Tar Sands. [Canada]: Distributed in Canada by Mongrel Media ; Métropole Films Distribution, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGreenpeace Foundation और Peter Mettler. Petropolis: Aerial Perspectives on the Alberta Tar Sands. Distributed in Canada by Mongrel Media ; Métropole Films Distribution, 2010.
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