Shackelford, C. D., Nelson, P. P., & Roth, M. J. S. Uncertainty in the geologic environment: From theory to practice. American Society of Civil Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Shackelford, Charles D., Priscilla P. Nelson, και Mary J. S. Roth. Uncertainty in the Geologic Environment: From Theory to Practice. New York: American Society of Civil Engineers.
Παραπομπή σε μορφή MLA (8th εκδ.)Shackelford, Charles D., et al. Uncertainty in the Geologic Environment: From Theory to Practice. American Society of Civil Engineers.
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