APA
Duncan J. M., . (2005). Soil Strength and Slope Stability. : John Wiley & Sons.
Chicago
Duncan J Michael, . 2005. Soil Strength and Slope Stability. : John Wiley & Sons.
Harvard
Duncan J. M., . (2005). Soil Strength and Slope Stability. : John Wiley & Sons.
MLA
Duncan J Michael, . Soil Strength and Slope Stability. : John Wiley & Sons. 2005.