Miller, R. W., & Donahue, R. L. (1997). Soils in our environment (7th ed.). Prentice Hall.
Chicago Style aipamenaMiller, Raymond W., and Roy L. Donahue. Soils in Our Environment. 7th ed. New Delhi: Prentice Hall, 1997.
MLA aipamenaMiller, Raymond W., and Roy L. Donahue. Soils in Our Environment. 7th ed. Prentice Hall, 1997.
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