Cita APA

Hamblin, W. K., & Howard, J. D. (2005). Exercises in physical geology (12. edition.). Upper Saddle River, N.J.: Pearson/Prentice Hall.

Citación estilo Chicago

Hamblin, William Kenneth, y James D. Howard. Exercises in Physical Geology. 12. edition. Upper Saddle River, N.J.: Pearson/Prentice Hall, 2005.

Cita MLA

Hamblin, William Kenneth, y James D. Howard. Exercises in Physical Geology. 12. edition. Upper Saddle River, N.J.: Pearson/Prentice Hall, 2005.