Weil, R. R., & Brady, N. C. (2017). The Nature and Properties of Soils (décimoquinta edición.). Pearso Education Limited.
Chicago Style (17. basım) AtıfWeil, Ray R., ve Nyle C. Brady. The Nature and Properties of Soils. décimoquinta edición. Harlow, England: Pearso Education Limited, 2017.
MLA (9th ed.) AtıfWeil, Ray R., ve Nyle C. Brady. The Nature and Properties of Soils. décimoquinta edición. Pearso Education Limited, 2017.
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