Cita APA (7th ed.)

Brady, N. C., & Weil, R. R. (2002). The nature and properties of soils (13th ed.). Pearson Education (Singapore) Pte. Ltd., Indian Branch.

Cita Chicago (17th ed.)

Brady, Nyle C., i Ray R. Weil. The Nature and Properties of Soils. 13th ed. Delhi: Pearson Education (Singapore) Pte. Ltd., Indian Branch, 2002.

Cita MLA (9th ed.)

Brady, Nyle C., i Ray R. Weil. The Nature and Properties of Soils. 13th ed. Pearson Education (Singapore) Pte. Ltd., Indian Branch, 2002.