Citazione APA

Miller, R. W., & Donahue, R. L. (1997). Soils in our environment (7th ed.). Prentice Hall.

Stile di citazione Chicago

Miller, Raymond W., e Roy L. Donahue. Soils in Our Environment. 7th ed. New Delhi: Prentice Hall, 1997.

Citazione MLA

Miller, Raymond W., e Roy L. Donahue. Soils in Our Environment. 7th ed. Prentice Hall, 1997.