APA (7th ed.) Citation

Dixon, D. (1989). The Planet earth. Gloucester Press.

Chicago Style (17th ed.) Citation

Dixon, Dougal. The Planet Earth. London: Gloucester Press, 1989.

MLA (9th ed.) Citation

Dixon, Dougal. The Planet Earth. Gloucester Press, 1989.

Warning: These citations may not always be 100% accurate.