Ngā kupu hautoa kōpae

Tohutoro APA (7th ed.)
Duncan, J. M., Wright, S. G., & Brandon, T. L. (2014). Soil strength and slope stability (Second edition.). Wiley.
Tohutoru Kātū Chicago (17th ed.)
Duncan, J. M., Stephen G. Wright, me Thomas L. Brandon. Soil Strength and Slope Stability. Second edition. Hoboken, New Jersey: Wiley, 2014.
Tohutoro MLA (9th ed.)
Duncan, J. M., et al. Soil Strength and Slope Stability. Second edition. Wiley, 2014.
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