2 Entertain (Firm), BBC Worldwide Americas, Inc, British Broadcasting Corporation, BBC Bristol (Firm), Discovery Channel (Firm), Nihon Hōsō Kyōkai, . . . Attenborough, D. (2007). Planet Earth (High definition widescreen ed.). British Broadcasting Corp. ; Distributed by BBC Worldwide Americas ; Distributed by Warner Home Video.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)2 Entertain (Firm), Inc BBC Worldwide Americas, British Broadcasting Corporation, BBC Bristol (Firm), Discovery Channel (Firm), Nihon Hōsō Kyōkai, Warner Home Video (Firm), Alastair Fothergill, và David Attenborough. Planet Earth. High definition widescreen ed. [Place of publication not identified] : [New York, N.Y.] : Burbank, CA: British Broadcasting Corp. ; Distributed by BBC Worldwide Americas ; Distributed by Warner Home Video, 2007.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)2 Entertain (Firm), et al. Planet Earth. High definition widescreen ed. British Broadcasting Corp. ; Distributed by BBC Worldwide Americas ; Distributed by Warner Home Video, 2007.