APA (7 वां संस्करण) प्रशस्ति पत्र

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.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Attenborough, David, और 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.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Attenborough, David, और 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.

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