APA citiranje

Erickson, J. (1995). A history of life on earth: Understanding our planet's past. Facts on File.

Chicago Style (17th ed.) Citation

Erickson, Jon. A History of Life on Earth: Understanding Our Planet's Past. New York: Facts on File, 1995.

MLA citiranje

Erickson, Jon. A History of Life on Earth: Understanding Our Planet's Past. Facts on File, 1995.