Cita APA (7th ed.)

Brady, N. C., & Weil, R. R. (2008). The nature and properties of soils (14a. ed.). Pearson Education Ltd.

Cita Chicago (17th ed.)

Brady, Nyle C., i Ray R. Weil. The Nature and Properties of Soils. 14a. ed. Upper Saddle River: Pearson Education Ltd, 2008.

Cita MLA (9th ed.)

Brady, Nyle C., i Ray R. Weil. The Nature and Properties of Soils. 14a. ed. Pearson Education Ltd, 2008.