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Shapiro, J.. (1981). Statistical Considerations in Pile Testing . : s.n..

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Shapiro, J.. Statistical Considerations in Pile Testing. : s.n., 1981. Text.

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Shapiro, J.. Statistical Considerations in Pile Testing. : s.n., 1981. Text.

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Shapiro, J.. Statistical Considerations in Pile Testing. : s.n., 1981. Print.