Tarbuck, E. J., & Lutgens, F. K. (2005). Earth: An introduction to physical geology (8th ed.). Pearson/Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Tarbuck, Edward J., agus Frederick K. Lutgens. Earth: An Introduction to Physical Geology. 8th ed. Upper Saddle River, N.J: Pearson/Prentice Hall, 2005.
Lua MLA (9ú heag.)Tarbuck, Edward J., agus Frederick K. Lutgens. Earth: An Introduction to Physical Geology. 8th ed. Pearson/Prentice Hall, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.