British Broadcasting Corporation, BBC Earth (Firm), & Attenborough, D. (2012). Frozen planet ([Widescreen].). BBC Earth ; Distributed in the USA and Canada by Warner Home Video.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)British Broadcasting Corporation, BBC Earth (Firm), و David Attenborough. Frozen Planet. [Widescreen]. [London?] : Burbank, CA: BBC Earth ; Distributed in the USA and Canada by Warner Home Video, 2012.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)British Broadcasting Corporation, et al. Frozen Planet. [Widescreen]. BBC Earth ; Distributed in the USA and Canada by Warner Home Video, 2012.
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