Lutgens, F. K., & Tarbuck, E. J. (2011). Foundations of earth science (6th ed.). Pearson Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Lutgens, Frederick K., agus Edward J. Tarbuck. Foundations of Earth Science. 6th ed. Upper Saddle River, N.J: Pearson Prentice Hall, 2011.
Lua MLA (9ú heag.)Lutgens, Frederick K., agus Edward J. Tarbuck. Foundations of Earth Science. 6th ed. Pearson Prentice Hall, 2011.
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