Attenborough, D., & Hughes, J. (2021). A life on our planet: My witness statement and a vision for the future (Throndike Press large print edition.). Thorndike Press, a part of Gale, a Cengage Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Attenborough, David, و Jonnie Hughes. A Life on Our Planet: My Witness Statement and a Vision for the Future. Throndike Press large print edition. Waterville, Maine: Thorndike Press, a part of Gale, a Cengage Company, 2021.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Attenborough, David, و Jonnie Hughes. A Life on Our Planet: My Witness Statement and a Vision for the Future. Throndike Press large print edition. Thorndike Press, a part of Gale, a Cengage Company, 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.