Cita APA

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

Chicago Edition Citation

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

Cita MLA

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