National Geographic Television & Film, National Geographic Channel (Television station : Washington, D.C.), Dockstader, N., & Diamond, J. M. (2010). Collapse. National Geographic Channel ; Distributed by Vivendi Entertainment.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Geographic Television & Film, D.C.) National Geographic Channel (Television station : Washington, Noel Dockstader, و Jared M. Diamond. Collapse. [Washington, D.C.?] : Universal City, Calif.: National Geographic Channel ; Distributed by Vivendi Entertainment, 2010.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Geographic Television & Film, et al. Collapse. National Geographic Channel ; Distributed by Vivendi Entertainment, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.