Cita APA (7a ed.)

Gaines, S. M., Eglinton, G., & Rullkötter, J. (2009). Echoes of life: What fossil molecules reveal about earth history. Oxford University Press.

Cita Chicago Style (17a ed.)

Gaines, Susan M., G. Eglinton, y J. Rullkötter. Echoes of Life: What Fossil Molecules Reveal About Earth History. Oxford ; New York: Oxford University Press, 2009.

Cita MLA (8a ed.)

Gaines, Susan M., et al. Echoes of Life: What Fossil Molecules Reveal About Earth History. Oxford University Press, 2009.