Cita APA (7th ed.)

Gardiner, D. T., & Miller, R. W. (2008). Soils in our environment (11th ed.). Pearson/Prentice Hall.

Cita Chicago (17th ed.)

Gardiner, Duane T., i Raymond W. Miller. Soils in Our Environment. 11th ed. Upper Saddle River, N.J: Pearson/Prentice Hall, 2008.

Cita MLA (9th ed.)

Gardiner, Duane T., i Raymond W. Miller. Soils in Our Environment. 11th ed. Pearson/Prentice Hall, 2008.