Citazione Stile APA (7a Edizione)

Lutgens, F. K., & Tarbuck, E. J. (2003). Essentials of geology (8th ed.). Prentice Hall.

Citazione stile Chigago Style (17a edizione)

Lutgens, Frederick K., e Edward J. Tarbuck. Essentials of Geology. 8th ed. Upper Saddle River, N.J: Prentice Hall, 2003.

Citatione MLA (9a ed.)

Lutgens, Frederick K., e Edward J. Tarbuck. Essentials of Geology. 8th ed. Prentice Hall, 2003.