Dyfyniad APA
Gaines, S. M., Eglinton, G., & Rullkötter, J. (2009). Echoes of life: What fossil molecules reveal about earth history. Oxford University Press.
Dyfyniad Arddull Chicago
Gaines, Susan M., G. Eglinton, and J. Rullkötter. Echoes of Life: What Fossil Molecules Reveal About Earth History. Oxford ; New York: Oxford University Press, 2009.
Dyfyniad MLA
Gaines, Susan M., et al. Echoes of Life: What Fossil Molecules Reveal About Earth History. Oxford University Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.