APA (7th ed.) Citation

Attenborough, D. (1981). Discovering life on earth: A natural history (Rev. ed.). Collins.

Chicago Style (17th ed.) Citation

Attenborough, David. Discovering Life on Earth: A Natural History. Rev. ed. London: Collins, 1981.

MLA (8th ed.) Citation

Attenborough, David. Discovering Life on Earth: A Natural History. Rev. ed. Collins, 1981.