Dyfyniad APA

Brady, N. C. (2010). Elements of the nature and properties of soils (3rd ed.). Pearson Education International.

Dyfyniad Arddull Chicago

Brady, Nyle C. Elements of the Nature and Properties of Soils. 3rd ed. Boston: Pearson Education International, 2010.

Dyfyniad MLA

Brady, Nyle C. Elements of the Nature and Properties of Soils. 3rd ed. Pearson Education International, 2010.

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