British Broadcasting Corporation, Ereira, A., Keane, F., Attenborough, D., Sachs, A., Lynch, J., & Pertwee, S. (2009). BBC atlas of the natural world: Africa, Europe, Americas, Antarctica collection (Widescreen and full screen versions.). BBC Video ; Distributed by BBC Worldwide America.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBritish Broadcasting Corporation, Alan Ereira, Fergal Keane, David Attenborough, Andrew Sachs, John Lynch, और Sean Pertwee. BBC Atlas of the Natural World: Africa, Europe, Americas, Antarctica Collection. Widescreen and full screen versions. Burbank, CA: BBC Video ; Distributed by BBC Worldwide America, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBritish Broadcasting Corporation, et al. BBC Atlas of the Natural World: Africa, Europe, Americas, Antarctica Collection. Widescreen and full screen versions. BBC Video ; Distributed by BBC Worldwide America, 2009.