Attenborough, D., Hughes, J., Harper, L., & Spetch, M. (2020). A life on our planet: My witness statement and a vision for the future (First American Edition.). Grand Central Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAttenborough, David, Jonnie Hughes, Lizzie Harper, और Meghan Spetch. A Life on Our Planet: My Witness Statement and a Vision for the Future. First American Edition. New York: Grand Central Publishing, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAttenborough, David, et al. A Life on Our Planet: My Witness Statement and a Vision for the Future. First American Edition. Grand Central Publishing, 2020.
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