APA (7th ed.) Citation

Poort, J. M., & Carlson, R. J. (1998). Historical geology: Interpretations and applications (5. ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Poort, Jon M., and Roseann J. Carlson. Historical Geology: Interpretations and Applications. 5. ed. Upper Saddle River, NJ: Prentice-Hall, 1998.

MLA (9th ed.) Citation

Poort, Jon M., and Roseann J. Carlson. Historical Geology: Interpretations and Applications. 5. ed. Prentice-Hall, 1998.