APA (7th ed.) Zitazioa
Leslie, J. (1998). The end of the world: The science and ethics of human extinction. Routledge.
Chicago Style (17th ed.) Zitazioa
Leslie, John. The End of the World: The Science and Ethics of Human Extinction. New York: Routledge, 1998.
MLA (9th ed.) Zitazioa
Leslie, John. The End of the World: The Science and Ethics of Human Extinction. Routledge, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.