Dyfyniad APA

Leslie, J. (1998). The end of the world: The science and ethics of human extinction. Routledge.

Dyfyniad Arddull Chicago

Leslie, John. The End of the World: The Science and Ethics of Human Extinction. New York: Routledge, 1998.

Dyfyniad MLA

Leslie, John. The End of the World: The Science and Ethics of Human Extinction. Routledge, 1998.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.