Cita APA

Gardiner, D. T., & Miller, R. W. (2008). Soils: In our environment (11th ed.). USA: Pearson.

Citación estilo Chicago

Gardiner, Duane T., and Raymond W. Miller. Soils: In Our Environment. 11th ed. USA: Pearson, 2008.

Cita MLA

Gardiner, Duane T., and Raymond W. Miller. Soils: In Our Environment. 11th ed. USA: Pearson, 2008.