Tarbuck, E. J., & Lutgens, F. K. (2000). Earth science: Edward J. Tarbuck, Frederick K. Lutgens (9th ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Tarbuck, Edward J., agus Frederick K. Lutgens. Earth Science: Edward J. Tarbuck, Frederick K. Lutgens. 9th ed. New Jersey: Prentice Hall, 2000.
Lua MLA (9ú heag.)Tarbuck, Edward J., agus Frederick K. Lutgens. Earth Science: Edward J. Tarbuck, Frederick K. Lutgens. 9th ed. Prentice Hall, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.