Citazione Stile APA (7a Edizione)

Lutgens, F. K., & Tarbuck, E. J. (2015). Essentials of geology (12e, Global edition.). Pearson.

Citazione stile Chigago Style (17a edizione)

Lutgens, Frederick K., e Edward J. Tarbuck. Essentials of Geology. 12e, Global edition. Boston, MA: Pearson, 2015.

Citatione MLA (9a ed.)

Lutgens, Frederick K., e Edward J. Tarbuck. Essentials of Geology. 12e, Global edition. Pearson, 2015.