Dyfyniad APA

Gale, J. (2009). Astrobiology of Earth: The emergence, evolution, and future of life on a planet in turmoil. Oxford University Press.

Dyfyniad Arddull Chicago

Gale, J. Astrobiology of Earth: The Emergence, Evolution, and Future of Life on a Planet in Turmoil. Oxford: Oxford University Press, 2009.

Dyfyniad MLA

Gale, J. Astrobiology of Earth: The Emergence, Evolution, and Future of Life on a Planet in Turmoil. Oxford University Press, 2009.

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